To the Mac Lovers:

Forget about Parallels. VMware, one of the leading names in virtualization technology on Windows and Linux, has created a Parallels clone for the Mac, called VMWare Fusion. And, drawing on their experience in the field, they've done a better job with it than Parallels ever did. VMWare Fusion makes it possible to realistically run two operating systems simultaneously on your Macintosh, without undue reduction in either OS's performance. (Some reduction is of course impossible to avoid due to the load this places on memory.)

And the best thing? VMware Fusion has a beta currently available for free. And, should you choose to buy the software, they're currently offering a 20 dollar rebate which places them solidly at $20 less than Parallels for the time being.

Oh, and did I mention? There's experimental support for DirectX included.

http://www.vmware.com