I pre-ordered a copy of SQL Prompt 3 and just loaded it yesterday. So far, I really like it. It will take some getting used to, but I think it will eventually help me write code much faster. The coolest thing I see right away is the suggestion when you type "ON" in a JOIN.
If you haven't used it, or if you used the old version and rejected it as slow and buggy, give the new version a try.