Red Scare, Good Post. I use an AT4050, BLA Auteur preamp, and Fast Track Pro, soon to be a BLA Sparrow converter. This is really all you need for vocals honestly. A quality mic, preamp, and converter. Fast computer too of course. And please don't tell me you're dropping a grand on a mic and don't even have sound treatment.
Far as mics go, I'd suggest getting the best preamp you can afford, and like the above post said, get the best mic that does your voice justice.
BTW I use this setup to record and make money with, and I've heard no complaints at all so far, our clients love the quality.