chances are you have a problem .
The acer supplied windows is probably going to be unhappy as an unhappy thing on the unhappiest day of the year when you swap mb's .... and to make matters worse you wont be able to use the disc to reinstall on the new hardware .
But you should try it and see , and if it doesnt work buy win 7 and another hard drive . Install that on the new system and then plug in the hard drive from the acer and transfer all your data
then once its all saved format that drive , or keep it as is as a back up
Thx Outlander, I'm probably going to do that. One more question- I am getting a board with no onboard graphics, when i plug in my card- GTS 250 will it automatically use this without the card specific software loaded? Or should I get a board with integrated graphics just to be safe? My thing is that I really want to run this system with SLI and I decided to go with a Intel Core i5-750 CPU, and it seems to be the only mboards compatible are ones with no graphics.