I'm building a computer for a friend and I was wondering if you could confirm if the hardware I am getting is compatable with each other.

Also if you can recommend any slight upgrades which won't affect the price too much, that would be great.
P.S. Can I put two lots 2 x 2GB memory into the motherboard?

Also if you can recommend any slight upgrades which won't affect the price too much, that would be great.
P.S. Can I put two lots 2 x 2GB memory into the motherboard?