I've been thinking of upgrading, mostly so I can get a faster machine and use my current machine as my server. My game server compiles are taking like half an hour on the current test server, its getting brutal to test stuff.

I'm looking into these:

mobo: http://www.ncix.com/products/index.php?sku=18778
cpu: http://www.ncix.com/products/index.php?sku=21227
video: http://www.ncix.com/products/index.php?sku=23715

1st: Are these compatible with each other? I'm still new to the PCIe stuff and the AM2 stuff.
2nd: Any major features I should look for that are missing?

Videocard wise I'm not too fussy since I don't play that many games, just as long as it will work with 2 VGA adapters since my monitors are not DVI.