...then I'll recommend getting something faster for gaming.. Yes, the RAM, and new power supply, and graphics card are fine, assuming the motherboard supports it all, but the E5400 is a 2.7 Ghz Core 2 Duo processor and you will probably find it a little lacking. It's fine for home and power users but a gaming machine could do better.

As just an example, our new Windows 7 Pro computers at the office, which perform basic office work, are using newer Core 2 duos with 3.0 or i3's with 3.2 Ghz.

Just my opinion though...

Hope this helps.

Grif