hey guys........ M planning to upgrade my current system. M just upgrading the mobo, CPU n RAM. M thinking of going Intel as i do a lot of application intensive work. i only play games here and there when i've got the time. was thinking of getting a dual-core system. was thinking of getting a P5 LGA 775 mobo and cpu. then for RAM i'm gonna get a 512x2 1gb kit. wat speed of the ram do u guys suggest? should i get PC400, 533 or 667? which is better for future usage? coz i wanna be able to use this system 4 a few years b4 another upgrade. so i'm planning to get the ASUS P54LD2 SE mobo n the Intel Dual Core 2x2mb cache 3.2Ghz CPU. what do u guyz think? will there be any compatibility problems n is it a good combo that's upgradeable in the future? thanks for your input. :-D.......