Having done a ton of research as well, I settled on a Tradewind Chiller. It's on the way. Made in the USA, overbuilt, very conservatively rated, 2 year warranty with an optional 5 year extended warranty (NO ONE else does this). I got a nice deal, and the supplier has another one. I've offered it to someone else on MAAST, so if he doesn't take it, I'll let you know.

P.S. Sean, that Geotronic looks cool - but for my tank the $1699 one is undersized! The Teco is 1/3hp top end. That's on the low side for a 150.