i know that after effects have quite a few - the newer production bundle includes one - not sure about FCP other than that it can handle SOME AE plugins.... so if u have AE or know some one who does - checkt that out
I tried that a while ago with some plug-in (can't remember which one) but the results were too "artificial".
If your shots/projects require proffesionaly stabilized looks, then go for Glidecam Stabilizer or similar. If not, I would suggest using the OIS on DVX100.
I use Apple Shake (on a PC), which is a high-end compositing package, but has really good image tracking a stabilization. Fast, and works great, but you have to create a new video clip outside your editor.
I was going to suggest u DL a demo for FCP but just realised it was windows only....
there are similar solutions out there... in terms of use - I used it to fix a scene where the tripod was to dolly from Extreme wide to a MCU - that was somewhat bumpy...