Yeah I noticed the DB errors as well... I'm pretty sure it's the hardware of the server. It's okay, right now it's hosted at home so I can fix them easily. I'm building a new server to put the sites and forums on to, and once I know it's stable and I can trust it remotely, I'll be sending it back out to my colocation provider...
It just gets all ****ed up whenever there is too much disk IO...and I know it's not the disk's, it's just the LVM...