Finally, after being away for a couple days, I was able to upgrade to Resharper 4.5.

After using Resharper for a couple years I'm so used to Resharper that it would be hard to use Visual Studio without it.

The new version has been improved. I noticed right away that the solutions are loading faster and Visual Studio is more responsive.

All licenses purchased after Dec 21, 2007 qualify for a free upgrade to ver. 4.5

If you haven't used Resharper I recommend to give it a try. (http://www.jetbrains.com/resharper/download/)