New Computer.

Alright, blessed with the knowledge of technology, I am asking my fellow Southperrians for their aid in the battle of a new computer. The new and sexy looking Windows 7 is date to come out soon, and I'd like to upgrade my computer to fit it's OS. My dad is thinking about buying a 9 gb ram All-in-one computer for 3k. I told him that is unnecessary because he can buy an 8 gb ram computer with a separate monitor screen. Works the same except it's more traditional. Althought all the best specs will be bought with this computer and such, I want one that would allow me to run two maples at once like how GMSInfighter did.
Any direct webys that might help? Any brand name is suitble except Dell! Dell is fucking gay and should feel Gay!


-Thank You!