power supply trouble

Hm, looks like I need to buy another power supply for the 3D printer. The one it comes with doesn't have enough oomph to kick the heated print bed up to 110*C, and I'm having print failures as a result; warping and parts popping off partway through printing.
The guys on IRC suggest going to 24v at 15 amps for the print bed, then 12v at 5 amps for the rest of the machine. ebay, here I come.