Welcome aboard Maxok!This is by far the best and most dynamic sim forum...
One question I recently bought a pc ( an Acer)with pretty much the same specs as you have; a 2.8 ghtz processor intel i7 860, 8 gbs of RAM but my graphic card is(unfortunately as I much prefer ATI cards)) an Nvidia GT330( 2 gbs of dedicated memory).I also have Windows 7 HP edition(x64).
I have been having problems with my pc not booting properly, erasing my graphic card drivers , Windows explorer just stopped working etc.I did 5 recoveries in 2 weeks and finally solved partly( my graphic drivers don't disappear every time I turn my pc on) my problem by installing 51 microsoft updates.However, I still have my pc unable to start windows and doing repairs before rebooting and finally starting properly.My suspicion is that Windows & bugs are to blame for the problem,.Did you experience similar bugs or problems like those above after installing Win 7????
Cheers
FrinikI