I just got my Titanium coated P99 9mm DA/SA from CDNN for $500 with shipping and transfer fees included.
I love this gun. It took me about 200 rounds before I was starting to group well with it. It has the shortest reset of any gun I've ever fired. There is no reason to get the QA when the DA/SA is already great.
Anyway, it's light, it fits like a glove, and is accurate. I've read that it takes about 500 rounds to break the trigger in, but it never bothered me in the first place, so take that for what it's worth.
It has been completely problem free with the 3 different types of ammo I've shot out of it.
For it's size, it's my favorite 9mm.