Yes, my Droid has been super slow for a little while now. But I rooted with EasyRoot, installed CM6, and overclocked to 800. It's actually pretty awesome again. I am going to do a factory reset and install the latest CM ROM today.
It's weird but I've had the Droid since last November, and I've noticed that every so often the performance gets all sorts of bogged down. A little cleaning out, and resetting usually does the trick.