If you read this thread closely, it has some specs on the stock 350w.
I like to run slightly over-sized Power-Supplies in my systems (so they run at low utilization and stay cool) ... so I upgraded mine to a mid-level Corsair tx650w.
EVGA Super Nova B1 750W 110-B1-0750-VR
Confirmed to Fit into the case and works fine.
HOWEVER the B2 BQ G2 G3 GQ models of the same unit DO NOT WORK.