Yeah, I got addicted to QuickSilver, a really cool utility that allows me to access most of the data I need in a few keystrokes. Impressive productivity boost, yet so user-friendly. Others also got addicted as well. I personally use the cmd+enter combo to call QuickSilver (the two keys just right to the space bar) as cmd+space is for Eclipse auto-completion. Download it, try it, and get addicted too!