i have the 40W superb TV actually, gets killer reviews and i love mine! at the moment i have a ATI 9600 graphics card plugged straight in via the VGA cable that came with the tele and it looks great. at 1920 its pretty small (Win XP) and i'm sitting about 2 metres tops away. i have it set to 1440 x xxxx which is actually good.
The mrs even enjoys surfing myspace and facebook on the TV now. But i have the same plan, buy a mac mini and use DVI to HDMI cable. the TV is very mac ... it just works! go do buy it now!!!