Vouchers for me were in a catalogue style bin/display at the front of the store as I walked in. They are about 4inchesx2inches. Just ask for the voucher booklet instore if needbe.
I haven't played with it yet. I also got a 50 inch Plasma this week so I have been XBox360ing like crazy. I know with my Samsung the picture is fine, just a bit of clayface but no lag. The Archos is big though and reasonably heavy. But if you think you will have the time (like I do with the tube) then this is great. It has a dock to connect to the TV and a remote control too. I believe it uses Windows Media Player which is c@ck at best. And if it's like my Samsung, will take a while to sync. To sync approx 20hours of video format onto it, I leave it overnight.
I have this, and because I use/love it so much I have purchased the Archos
http://reviews.cnet.co.uk/dvdpvr/0,3...9184820,00.htm
Archos review
http://reviews.cnet.co.uk/dvdpvr/0,3...9192404,00.htm