I'm pretty happy with my evaluation of ReSharper. And, we will probably be using VS.Net 2003 for a short while after the release of VS.Net 2005. But, ultimately, we will be upgrading and ReSharper's refactoring will lose value for us.
I assume you are planning to integrate with VS.Net 2005 - can you share anything that would increase the value of ReSharper for us going forward? I would hate to purchase it now and find that I can't use it effectively in another 6 months.