This website was extremely useful to me for selecting the correct mobo, processor and memory to work together (although I bought from newegg instead).

http://www.motherboards.com/catalog/ccc.php?PHPSESSID=9455388c4a49f3969fc20e5cba8742f3

Click "Start" and the "Custom Combo Creator" will step you through the process.

I went with the Gigabyte 8KNXP Ultra, the 3.0GHZ Intel Processor and a gig of the corsair ram (bad choice on the ram; it was DOA).