how long did you run memtest for? i think youre supposed to run it for 24 hours to make sure. but anyways, if you think raid controllers might be messed up try booting a single drive not in raid at all. other than that ive only ever dealt with raid1 and read a little bit about raid0 and 2, but dont know how they work exactly. supposedly windows vista and 7's integrated raid controllers are legit, but i havent ran raid since i upgraded to 7 from xp. ncixcom on youtube just released a raid controllers setup and tutorial, you should watch that and get some info, that linus guy is very knowledgeable.
@nick...
FFFFFFFUUUUUUUU i forgot all about apex lol, did mango end up going?