...my 5D Mark II has arrived

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It was ordered on 9th January from DABS who I've had good experiences with in the past for computer stuff. Their early pricing was rather competitive so I think queues have been long. Now it's here, I'm glad I waited, but as delivery estimates have come and gone it's been a bit frustrating along the way.
Once the thing arrived and the battery was charged, it was late so I headed to the nearest National Trust property (The Vyne) for a few quick snaps. Seemed fitting as I took my 40d there the day it arrived too. I didn't have time to try too many aspects of its performance so I stuck on a 17-40L (also new) and cranked the ISO up to (mainly) around 1600.
Here's one of them:
http://farm4.static.flickr.com/3537/...1df351d2_o.jpg
My first thoughts on the camera (coming from a 40D).
1. Difference in size and weight from the 40D are far less than I would have expected. I can barely detect an increase.
2. The viewfinder is lovely. I was immediately struck by how much easier it is to scan around the frame to adjust composition and identify factors I might not have spotted so readily.
3. Stupid, I know but....the shutter sound is so smoooooooth

4. The value of being able to reliably check focus by fully zooming in on the LCD exceeded my expectation. I shall probably chimp much more

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5. Uploading 21Mp RAW files takes a long long time. This was tedious... However, I wasn't aware of any significant delay doing a few Lightroom adjustments. I'd been worrying that I may need to upgrade the PC - maybe heavy duty PS processing will change my mind but at least if I stick to the knid of basic PP I usually do, the PC can cope.
6. Moderate - High ISO images still look noisy at 1:1 resolution but the noise is barely detectable under normal viewing conditions. I'll reserve judgement till I've tried making a few largish prints.
7. I was much more aware of geometry issues with the 17-40L than I ever was with my Tokina 12-24 on the 40D. Not sure whether this is solely a lens issue, or a full-frame issue or perhaps a bit of both?