|Thanks for the info.|
I have reinstalled windows XP after every single power outage in hopes that it might repair any corrupted data or faulty OS. However, the boot problems persist after install, which makes me believe it is a hardware problem. (even after fresh install; booted to empty desktop before)
So I guess at this point, I am picking apart the order of hardware to replace so I don't waste too much money. =P
1) power supply (most likely suspect)
2) hard drive ?
3) consider motherboard, ram, chipset (pretty much building a new computer T_T)