Techspot is the best hardware troubleshooting resource I came across on the internet:
http://www.techspot.com/vb/index.html
If any Pit members ever run into hardware problems, I highly recommend this site. It also has a great forum thread on tips for building your new machine. The members are highly knowledgeable, and the posts generally are extremely detailed with tons of useful information and screenshots.
I already owe them my first-born.