I would be happy to get some help choosing components for a custom build

My goal with this project is to get a Low Power Server running as File-, Web- and Database Server, on OS X or OS X Server if possible.

I was looking at the Quad Q8400s or Phenom II X4 905e wish both have a thermal effect of 65 W.

A motherboard with integrated graphics would be nice.

Any help or suggestions about this one?