I recommend that you save a couple more dollars (~$80) and get a Intel Core 2 Duo E6300 and overclock it. You will regret it if you buy a AMD Athlon/Opteron anything at this point.

Really good pictures and I like how you have kept all of your wires clean and out of the way. Good job!

Great pictures and I like you dual overhead monitor setup. Watch your head!!

Great pictures and nice looking small form factor case. I was looking to get one but with it being so small I thought that the temps might run a little. You seem to be able to handle the temps well. Nice job!

Very nice pictures but what is with using tape and cardboard. The best results will come from plastic (NOT METAL) dryer duct.

Have you considered running Linux/Unix with Samba on your file server? There is a great ready made BSD distro called Free NAS at http://www.freenas.org/. The requirements for Free NAS are very low and it is very reliable.

As far as performance and silence goes I think the new Zalman 9700 has all others beat.

I am assuming that you are running Windows XP but have you considered running a Linux distro?