I know 2 places where you can get the black blade, black handle Dirac Delta, (steel hardware though, cant find any of the fully murdered out ones). Hit me up if you want to know where.
Ya, Liquid Cobra nailed it. They are FUN.
My biggest collection by far is Spyderco, but I have decent collection of Emerson and Microtech knives as well.
I wish Spyderco could do more with their auto's. In particular I wish they would make a California legal auto. But I completely understand why they do not.
I LOVE dual action OTF's. In particular the Microtech Combat Troodon, the absolute finest otf I've ever seen. Just a beast of a knife, I feel like a kid with his first knife every time I hit the button and it fires open like a rocket.
A big fan of the Microtech Exocet too, it kicks my Dragonfly out of my pocket quite a bit. It's got a super thin 2" double edged blade that not only slices through cardboard with ease, but also makes a legit self defense tool.