Raven Crest Tactical OTF. look it up and watch the videos. Impressive
I'd never heard of them before; I just spent 20 minutes poking around their site, and I must say I'm impressed. I especially like that (unlike other OTF manufacturers), they recommend, and instruct owners in, disassembly and maintenance.
The one thing that's stopping me from pulling the trigger (as it were) is that they don't offer any blades in decent steels. I can't imagine ever paying over $50 for any knife in 440 stainless; it's about the cheapest steel you can make a knife from, and though it'll take a usable edge, it won't hold that edge at all.
As a comparison, the Ultratech I've been looking at costs about the same as their OTF, has a solid reputation for quality, and comes with a blade made from Elmax, which is one of the top two knife steels on the market currently.
I may send them an email and ask if they'd offer a blade option in a better steel...