Prep for the 70-431 certification exam with a good book and build a test environment. The cert requirements touch on a bit of everything and is a good overview. I'm on 2000 and have been following this procedure for about a month now. I feel comfortable with 2005 and wouldn't have a problem migrating any of my db's from 2000. Unfortunately I have to wait on my 3rd party app's guys to make the commitment.