All of the high amp PSUs I've seen on eBay are too big to fit in a case, like the Astron PSUs. Only the Mean Well's are the right size, but I haven't seen one in many months. Until I saw this PSU:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2064923160
It's an ATX PSU that apparently has 25A on +12v, which seems pretty good. And cheap too. Someone should get it and see if it is what it says, because you could probably power a 226w pelt
and a full system if it is true.
Oh, and I looked at those 700W Dell PSU's, but they are huge! Like the size of two ATX PSU's stacked on top of one another, but even longer. And no ATX connector either! But from what I can tell they have 30A on +12v.