What case will you be using? The mobo you picked is an ATX, just be sure that the case you pick (if you haven't done that yet) will hold the board.
Your mobo is socket 939, your processor is socket 754. I assume you meant to pick the 939. Go over to pricegrabber,
the 3200 939 athlon
can be had cheaper at zipzoomfly. I'm seeing it is the same price as the 754 socket at Newegg.
The MSI "K8N Neo4 Platinum"
is supposed to be a great board. It's only $27 more, but worth it from what I hear. Does it have to be an nForce 4 board or can it be an nForce 3 board?
You also may want to look at Monarch computers
. They sell combo's
One of the best things I found to do while building my son's system; was to go to pricegrabber and make a profile, then pick your parts & add them to your shopping list. You'll get notified when prices come down & it will give you other shopping options other than Newegg. You may be able to save more cash to afford that better mobo.
Another thing to do would be to check out Comp USA
for the video card. You can get this one
a Radeon X800XL for $299.99. You also may be able to get it cheaper, they are having scratch off cards from what I saw in my emails, unless that ad is over. Either way, the cash you save at CUSA will give you the money for the better mobo
Last thing would be ram. Here's a post
I made. Your ram is Cas 3, if it were me, I would find something lower. He's better off spending a few more $ now than to be sorry later.
Also stop by One4ya's post of links