G33k,
Yeah, I have thought about it... not a light solution... but as light as I can make it.
BladeRunner,
Whoops... meant "I plan on lightning up the blocks too... "
hmm... didn't think about the board warping... I may shave more off the blocks than just drilling holes then. I'll have to do some sketches to see what looks good and is still VERY light.
I guess my main concern with lightening up the blocks too much is the copper might bend when clamped to the board... although that might be a good thing (solid contact with ram and GPU). :shrug: