Thank you all for the suggestions! All great options -- almost too many!
The Sebenzas are very nice -- but $400 is out of my price range. I should have specified that I'm not looking to spend more than $150 or so.
I prefer liner locks because they are simple (no grasshopper springs or ball bearings), and allow the knife to be easily closed one-handed without changing your grip or closing the blade on your hip (or flicking it back down) as with a lock back. I realize they're not the strongest, but I don't do cutting tasks which stress the lock. It's basically just a safety.
I was about to go with the RAT 1 -- my only nit-picky issue is the amount of non-functional space between the finger choil and the blade. That's the part of the blade where you get the most leverage in a power cut, and on the RAT 1, it looks to be about an inch apart.
Now I'm strongly considering the Spyderco Tenacious in S35VN (thanks for the suggestion @David Mary). Reading up on this steel, it seems to be okay to sharpen. Not like carbon steel, but I think I can get away with my oxide stones and my small diamond plate. I've read it will respond to a leather strop with compound, so I think this will be okay without any additions to my sharpening setup. Doesn't need to pop hairs, and I prefer working knifes a little toothy anyways.