I have an HSS Mex-Strat with a Floyd Rose instead of the regular Fender trem. I've never gotten a chance to mess with the Fender trem because most stores (e.g. Guitar Center) apparently leave out the tremolo arms on the floor models.
I've heard that the Fender trems don't suck away as much tone.
I think I want to get a guitar with a Kahler on it.