Funny you should ask....
I've just been reading Phil Gordon's 'Little Blue Book' and he recommends
www.ddpoker.com which has an excellent hand analysis tool also.
I'm in the process of downloading it as I write this so haven't really tried it out yet, therefore I can't comment on the quality or if it will work with FT or PS hand histories. However I have noticed three things in it's favour;
1) Phil Gordon uses it, and that's enough recommendation for me!!
2) It's compatable across multi-platforms, Mac OS, Windows and
linux
3) It's free.
I'd be interested to hear from anyone else who uses this and if they've encountered any problems with running it.