1500? INSANE! There are lots of configurations you can build with this...
If you want a single channel preamp, how about a Grace 101? A truly GREAT preamp for about 600. The Aardvark, as was said before, has good, usable preamps in it. (Not like the Grace, but certainly very usable) That's 500, giving giving you 400 for a mic. Around there, you're looking at things like
the CAD M9, Rode NTK (actually, closer to 500 for that), Baby Bottle, or maybe even a Shure SM7 (yeah, you said condenser, but gee, I've been having so much damn fun with the SM7 lately on male vocals. Through a Grace 101, it just kicks ARSE...)
If you can afford to, get a good preamp. If all you need is a single channel for vocals, the Grace 101 will do the job extremely well. There are abunch of others in that price range you might want to try, such as the focusrite, art, or presonus stuff, which might provide more features for the same or less money, but my personal experience has been that the 101 just KILLS. (I still don't know enough about the RNP's sound, but it's also a single channel around the same price range as the 101.) For live stereo stuff, though, the Presonus MP20 is quite good...