If anyone wants to know:
It ran fine for a while, then BSoD'd, then wouldn't start. At that point it was 11 PM and I didn't wanna deal with it anymore, so I went to bed.
I've had a suspicion that the SATA cable was faulty, as the HDD seems to be having all these problems, yet everything else is flawless. I swapped the SATA cable with that of the DVD drive, and what do you know, everything's fine with the HDD, and now the DVD drive's iffy. So I'll be picking up a new SATA cable shortly.
Just figured I'd let you guys know.