i too am interested in a widescreen notebook and the 4760 looks very enticing. also, i noticed that there is now the tv-tuner option available! which is excellent. my desktop has ati allinwonder radeon and watching tv windowed or fullscreen while surfing or whatever is truly convergence at its best. ati's seemingly deserved reputation for driver issues has much improved since i first got the card 3 years ago and digital vcr recording is very useful. (set simpsons to record while at work! it is on 3 times a day here in chicago).
with respect to the 4780 rumors, here is what i have seen checking out some other resellers of sagers and clevo notebooks:
the eurocom.com site
under 'future products'
has october 9 launch date of the fsb800/ddr400/128MB-9600 version and october 9 as the launch date of the centrino 64MB-9000 version. of course, who can say whether pctorque will offer these, but it may be some indication.
hopefully not to complicate matters, but now i am also looking at this upcoming product at sagernotebooks.com the 3750
which is centrino/15" widescreen but paired with 5h|tty intel extreme shared 64MB graphics and no tv tuner option. i'm thinking the sacrifice on gaming & tv (since they're not my primary or secondary priorities) is worth it for the longer battery, lower weight, quieter running (presumably) and less heat.
what i am really waiting for is the potential 3750 successor: 15" WU
XGA with M10-128MB, tv-tuner and 2x dvd burner. but, sigh, i do grow weary waiting for the future and i'm not getting any younger. i am enthusiastically intending to buy from pctorque though because this forum is very compelling to me as far as the committment to customer satisfaction that it seems to represent. i suppose all these enthusiastic pctorque/sager customers could be faked somehow and everyone is on the payroll, but it doesn't seem likely.