Down to T185 in a UB $10+$1 with blinds at T100/200 and entered the FT 3rd in chips. Finished 8th though. That was a long time ago before I knew that making the FT was just the beginning of the tournament, not the end.

The best comeback I've ever had was having T4 at a Omaha/8 SnG at Stars when there were seven players left and finishing 3rd. I went all in about 10 of the following 12 hands. Pure luck!

-AquaSwing