Wait and get what you want. I'm not knocking the PT99 as its a pretty good gun and I do like the frame mounted safety feature. But it is not a Beretta (tho it's real close and maybe the safety w/ the ability to carry C&L or DA/SA offsets the Trident from the Bull). I've got one of each (92FS and PT99), both good quality guns, but my PT99 was bought back in '86 when they were considerably cheaper than Berettas. Price point difference is not quite so large nowadays.
But then again, w/ Beretta just signing on a large contract to provide Uncle Sam w/ M9s, it might be a bit of a wait.
You can't really go wrong w/ either for launching 9mm down range, you just rarely hear a Beretta owner saying he wished he'd bought the Taurus... ya know?