Well I've finally got the Sony HDR-HC7E! I've had it for a week, but have hardly had much of a chance to test much filming with it yet... But I just thought I'd share my initial thoughts...
I initially agonised between the Canon HV20 and Sony HC7 when they first came out - I actually marginally preferred the image on the Canon from samples online, especially some of the really low-light stuff. But I'm unlikely to want to use 25p, and need a camcorder that can be reliably used day-in day-out, is easy to use and good to handle, and has reasonably good onboard sound (as well as a mic input).
I got my HC7 from ebuyer last week with next day delivery (complete with mains cable, just waiting for Sony to send through a registration number as no manufacturer's warranty card), and a 256MB Pro Duo memory stick for the stills. I've also got a spare medium battery (NP-FH70) & Sony Premium mini DV tapes from Amazon along with a very nice Lowepro weatherproof soft case (Apex 140AW) - it fits very nicely along with 2 tapes and batteries and a few other bits and pieces, I just wish the case was a bit longer and less tall, but there's room to stuff my vocal mic & cable in the top anyway.
Just from the first few minutes of filming, I already notice a difference in the way I have to handle HDV. Firstly, presumably because of the long-GOP compression, I find I have to allow just a tiny bit of extra time at the start and end of shots. Also, it does seem to pick up handheld wobble more noticeably (even with the OIS on, which seems pretty smooth but not overcooked) - so I've also got a Velbon UP-4DX ii video monopod, which is very solid for a small cam but very portable too. So I think a lot of my filming now, when not using a tripod for fixed stuff, will use the monopod, either on the ground, or "unextended" as a sort of brace to hold the cam steady with both hands (both methods seem to help quite a bit) - and will go completely handheld rather less often. I've already also seen the cam struggle slightly with getting the autofocus right quickly when zoomed in, just occasionally.
But that brings me to some of my favourite bits about the cam. Spot focus (touch the screen and it auto-focuses on that point) and spot exposure meter (ditto with exposure, ideal for filming something in front of a bright window) are both great tricks. And I personally find the touch screen menu a pleasure to use, especially since it can be customised with the "P-menu". Believe it or not though, I have already taken to using a clean lint-free cloth to touch the screen, otherwise it was going to keep getting covered in smears all the time. (I don't know what's worse, rhubarbe, my greasy fingers or your heavy breathing!

).
Much as I liked my Panasonic GS180 (and would still gladly recommend the range), I do actually feel more confident about the exposure and white balance of the HC7 (or any Sony I've tried), - I never quite felt I could rely 100% on the GS180 for its auto settings. I'm actually almost surprised (pleasantly) with the neutral looking colours I seem to have got on the HC7 - I was worried they might be a little too saturated, but the green grass on last weekend's footage does show it to have been a typical overcast, slightly dull day!! But colour, and AE setting, AWB setting & sharpness can all be adjusted to suit anyway.
Thankfully my first 3 minutes' footage have transferred to PC by firewire (downconverted to DV) with no problems, Windows XP (SP2) recognised the cam no problems. The picture does look very nice... I'm sure the superlatives will start to roll when I next transfer some HDV or use HDMI into a HDTV.
I also like its "grid of 1/3s" guidelines, the zoom is nice to use, and it's got exposure zebras and histogram, and (occasionally) useful AE modes - as well as the super slowmo, IR (super) nightshot, S-video (for live analogue mixing), high res stills, and LANC control input, none of which I haven't tried properly yet. And the xvColor thing (?!).
In an ideal world, I wish it had: focus assist (magnify &/or peaking), &/or a larger / higher res LCD, although the 2.7" widescreen LCD on there is clear; possibly a manual focus ring - although the spot focus and touchscreen +/- and little cam control dial are possibly all you need on such a small cam anyway (it's good the dial can be assigned to exposure and other settings too); possibly AV-in; and cheaper batteries and a standard shoe fixing. Although the HC7 allows independent manual shutter speed and exposure settings, I really do still prefer Panasonic's clear method of setting the exposure - changing aperture size until fully open and then adding gain (both with actual numbers), rather than an uncalibrated sliding 'exposure' scale - especially when the HC7 will tell you the aperture and gain when you play it back! But these are minor quibbles - I'll enjoy using this cam, and will enjoy hopefully getting some great results soon! (I'll let you know when I've watched it in HD)
Just one quick question (if anyone's still reading!!) - would anyone recommend a filter (UV / ND etc) as a lens protector, always on? Especially as the filter thread is outside of the automatic lens cap?