Funny you should ask....
I've just been reading Phil Gordon's 'Little Blue Book' and he recommends www.ddpoker.com (http://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.