The NFL.com website has just launched a freebie online video editing package to make NFL film reels from.
http://replay-re-cutter.nfl.com/
Its a bit of a timewaster really, but if you take the time, I think that you can create some pretty cool montages.
Unfortunately, the highlights are only from this season, but dolphins fans can have a great time with a Ronnie Brown video. All of the Steelers ones seem to end with big ben plonked on his arse