So it's looking like I committed the ultimate sin in computer troubleshooting and didn't check the simplest and most obvious resolution first. After formatting the drive and installing Windows 7(which I wanted to do regardless of the crash issues), the system was immediately giving me the same issues. I checked the temps inside and noticed the CPU was idling at about 70 degrees celsius. Took off the heatsink, cleaned out the fins and fan, and the idle dropped down to 28. I'm assuming that hadn't been cleaned since I put this system together, as it's not mine, but one I built for a friend. So far, everything looks good, but I will keep you guys updated. Thanks again for your help.