Hmmm, very interesting...
Maybe what i need is a photo of a later (2001) iMac with the logic board out of it. The amount of clearance from the old processor to the heat sink appears to be the same as the new one, it's just that the processor is in a different location. I was making the assumption that I could drill and mount the heat sink in the proper place so it would work with the new board.

Of course, Whitlock has a very valid point... is this worth my time? I seem to enjoy little projects like this (took apart my old vcr once and spent a week trying to get the gears all timed again...eeek!)

I would be the type to tackle a larger heat sink and overclocking too, but since I've never had the guts to actually do it before now, i'd need guidance....

Whitlock, whats the safest way to discharge the CRT should I tackle this disassembly? Should I use my tongue? :P (okay, not funny)

thanks guys