As you're probably already aware, Microsoft recently RTM'd Visual Studio 2008. Well, I had a moment to come up for air the other day and decided it was time to upgrade my machine to this newest encarnation. I must say that the installation was probably one of the easiest I've ever done. The product installed very smoothly without even a hiccup. Also, much to my delight, ReSharper 3.0 continues to work flawlessly with VS2008! 
Having played around with the Beta and CTP versions of VS2008 I was very excited to move onto the released version. It's flat out awesome!
Highly recommended!