Sanjuro - I have a non-conductive shim so I don't need to worry about the rubber feet. Aquastealth doesn't give any dimensions but it doesn't look as big as a cpu by the mounting holes.
Cyco-Dude - I read somewhere that the Unablock preforms about 1C better than a Maze1. In this review...
http://www.procooling.com/reviews/ht...t1-page8.shtml
... that would put it with the BeCooling Jagged Edge.
I even found a guy on this forum (garybuck) who used the unablock on a 1ghz axia @ 1.33ghz. w/ 1.85v with load temps at 40C! He has a very similar setup to what I'm interested in. I guess I answered my own question.

Thank you though.
ToddAlaska - I think I really like the powersteering reservoir idea. What size are the connectors? 1/2" 5/8"? Was it expensive?
Thanks for all the replies guys.