I'm considering using a Mac Pro as an application launcher so that I can launch Windows VMs, Linux VMs, etc. for development and testing purposes as well as have OS X for testing purposes. One hesitation is that I want to run Internet Explorer 7 (but could get by with 6). Can I use Parallels to launch IE7 on the Mac Desktop (coherence I believe it's called). Our software is already tested with Firefox and Safari but only a minority of our customers use those browsers. Thanks!