Larry Mahnken of the Hardball Times and the Replacement Level Yankees Weblog sends me a great tool, a DIPS worksheet. I'm also making it available by clicking here (it's a zip file). Larry's explanation:

They're incredibly easy to use, and they feature Park Factors for every season since 1969. You can calculate a pitcher's entire career with them, using up to 30 team-seasons (more than you'll ever need). It automatically combines multiteam data if two to five consecutive columns are in the same season. You can choose to park-adjust HRs, SOs and BBs, some, or none at all, with a single click. They're better than ESPN's DIPS stats, because they're adjusted for parks, lefties and knuckleballers, and can also be used for past seasons.

Enjoy!

Update: Finally got the download link right.