So I got the Aqua Xtreme 50Z water pump, and I hoooked it up for the first time today. I wanted to test my loop, let it run over the weekend, and I plugged it in, and nothing. And then I remembered... I was on XS today, and I saw someone talking about there water system, and some had, in parenthesis, (btw my 50z was NOT DOA) and I thought "Oh dammit, mine might be, Hope not" Well, guess what? DOA!!! Must be alot like the XFX cards. They perform extremely well, when they work. Advice anyone? IO obviously have to RMA it, and pay for the friggen shipping so, what do we think the best pump is BESIDES the 50z? I mean, in that range of pumps. Price, flow, etc...