I just picked up the Sparkle 300 watt psu from Newegg for $33 shipped to my door. Now the specs on this thing are better than 90% of the 400's and most of the 500 watt psu's that I have been shopping. 3.3V@28a; 5V@30a; 12V@15a. These seem like some pretty good #'s to me. Tell me if there is something that I am missing here? These are definately better #'s than the 300 watt psu that I am running now, and it looks to me that it should run the XP1600 rig that I am building right now.