I would say you have 2 samsung options. That's to say if you want the following and optical to connect SKY+ or PS3/XBOX 360 to get 5.1.
1. You want upscaling DVD to 720p or 1080i
2. You want HDMI connection
3. You want to play xvid/divx straight out (no conversion)
4. You want 5.1 Dolby Digital, DTS for yor DVDs
5. You want to play 2-channel (stereo) content in Dolby Pro2 (I call it the pseudo surround mode)
6. USB connection
Samsung seems to get this right and they came up with two really good 5.1 models.
1. Samsung ht-xq100r
http://www.samsung.com/uk/products/h..._xq100rxeu.asp
2. samsung ht-tx35r much less info available as it's very new. You can find info. samsungs french website.
First system was tested on what hifi magazine april and beat the other contenders for sound, picture, sheer style, features and price.
Second one is soooooooo new there is no review of it anywhere (not that I could find) but my suspicion is that it's same everything as the first system with a different shell. First system top-loading soft-eject unit. It's not your flat evarage DVD player more like a designer home look to it. As a result it would not fit everbody's cabinet/stand where the second one is exactly what you would expect from a DVD player in terms of it's geometry.
I am running my PS3 off of the optical in w/ 5.1 surround and all the other stuff I mentioned above. It's easy to hack to make it region-less. There could be an issue with PC recorded dvd/cds as it can be quite selective with them (so I've heard).
I hope this helps.
Cheers
Koray