I have an old gateway computer that I'm trying to fix up. The model # is mfatxstl elp 500c. The Serial # is 0025393778. I'd like to get some specs on it, but I can't seem to find any anywhere on the net. The powersupply is also blown, so I need a new powersupply, and I'm wondering if any old power supply will work or if I need a specific one. If so, where's the best place to find one? Thanks for your time.