I really feel stupid for asking this, but i think 4gb will have better performance over the 8gb. With the G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-4GBPK - Retail have better performance than G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail (xxx2!!)
4gb(2x2GB)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820231166
8gb(4x2GB)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122
Will be getting Windows Vista 64 bit
4gb(2x2GB)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820231166
8gb(4x2GB)- http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122
Will be getting Windows Vista 64 bit