I haven't searched or researched much, although have heard fairly good things about the Quark by 4Sevens.
On the Quark side of things, you could always pick up the Quark 2xAA model, plus a 1x123 body. That way, you can keep it small for EDC, or use cheap AA batteries. It's also nice that the Quarks give you a choice of tactical or regular interface when you're purchasing.
Of course, if you really want something different, you could go for the Quark RGB, at $99 :twothumbs apart from the obvious groovy colour stuff, the RGB has a purely floody beam, with little throw, which makes it functionally different to regular white-beamed flashlights - great for close-range stuff.