Anyone have any comments on mcp650, good or bad?

I'm looking to get a small 12v pump that has good head. Ultimately I'd like to house the pump inside the case, with some sort of custom fixation for the heatercore to the side of the case. These marine pumps look big, are they?
Oh this would be probably a pretty resctrictive loop. Ultimately I would be phase cooling the cpu, but until I can save the money, I'm going to be cooling cpu, gpu, and eventually ram. I hope to run 1/2" tubing.


Any other suggestions/advice is mucho appreciated.