View IE (6,7,8,9) on Mac?
Wine claims to support IE 6, 7, and 8 with varying levels of efficacy.

It's not a simple solution, but it sure is a hell of a lot lighter-weight then a VM, and it effectively runs the full browser on OSX.

You need to be at least somewhat familiar with the command line to get anywhere with Wine, though.

Crossover Mac is basically a MacOS GUI for wine. It has the same capabilities as wine, but the GUI makes installing things much easier. On the other hand, it's not free.