Ionicle I'd reccomend picking up a new PSU with that DFI LanParty.
Here are the two PSU's that would fit you well for now & the future.
You pick the one, doesn't really matter--but I stand behind Enermax all the way. I have my Enermax powering my system perfectly. My dad has a True Power 430w powering his system perfectly, too. (Though he doesn't have as power-demanding equipment.)
They are
both ATX 2.0, and have the 24 Pin ATX power cable. They also both have a 6-Pin PCI-Express video card power connector for a future upgrade.
Antec TRUEPOWERII TPII-430 430W Power Supply - Retail - $65
ENERMAX EG425P-VE SFMA 2.0 420W Power Supply - Retail - $77
Yes, the Enermax is quite alot more, but you definentally get what you pay for in a Power Supply. The Enermax has a
lot of neat features like an EMI Ring Core; which 'dramatically' reduces Electromatic Interference given off by the PSU.
It also features a 'smart fan' which lets you control the fan's, within it's own threshold so you cannot overheat the PSU purposly, for any amuzement purposes :rollingla . The 'smart fan' also keeps the PSU fan's on AFTER you shut the pc off, until the air in teh case is below 40ºC!
Good luck man, and happy PSU shopping.