ok basically the Infinity is one huge square block,lots of fins and big heatpipes. It will cool really well cos thats a functional design made to do one thing - cool the cpu.

If you start looking at the eclipse, or nitrogon6, or even Zalman 9700, then you gotta start thinking, do I want something that looks nice (using sidepanel)? Do I want the HSF to help cool surrounding chips?

Just make sure the Infinity fits into ur casing.