I also installed my MSDN on Friday on my Inspiron 6000. I've had no problems so far (except a couple program compatibility issues), and it is running much faster than RC1 did on the same laptop. As it is a slow day on the IT help desk here I'm doing some video editing on it to pass the time.

I'll be loading my T40 with it come Nov 30th when we get our volume key at work. (Of course I may need to wait and see what the company is planning for activation.)