Endless Options
I'm with heylow on investing in mics and a good preamp. In fact, I'll even go further than that and include an A/D converter!
I propose a DaviSound TB-6 for $995 (4-ch.), a Lucid A/D 9624 (2-ch.) for $750, and that only leaves you with $250 for a pair of mics if the max. is $2k. So, I'd get a pair of Marshall Electronics MXL-603s AND a pair of Behringer ECM8000s, and use those with much great success until I can afford a pair of something else.
If the max. is $2.5k in the first place, then that leaves you $750 for a pair of mics! The possibilities open-up quite a bit at that point. You could go with a pair of Shure SM-81s or a pair of Crown CM-700s. Or nearly a pair matched-pair of AKG 451Bs or nearly a matched-pair of DaviSound DS-1950s (not a bad idea as they'll work great on vocals too). Then there's large diaphragm possibilities too. A pair of Studio Projects C3 or a pair of Audio-Technica 4033s are very nice. A few other possibilities too.
If you got the preamp, A/D converter, and you decided to go a tiny bit up to spending $1k for a pair of mics, your possibilities sore even more! Could give some examples if you care for me to.
By the way, I could have suggested
the John Hardy M1 2-ch., Great River MP-2MH, Earthworks LAB 102, and many other "transparent-type" preamps that'll very much do a superb job for your needs, but they are significantly higher priced than the DaviSound TB-6 and the TB-6 certainly is just as great sounding as any of those others. Actually, the LAB 102 is only about $300 more, but I feel that extra $300 would be better spent elsewhere in this case.
Multi-channel pres and a couple single channel ones?
Simply just referring to how many channels are in a single unit. Can be anywhere from 1-to-8 (possibly 12 or 16?). Most commonly, they are 1-4.
Websites For Reference:
DaviSound:
http://www.davisound.com
Lucid Audio
http://www.lucidaudio.com
Marshall Electronics MXL Microphones:
http://www.mxlmics.com
Behringer:
http://www.behringer.com
Shure:
http://www.shure.com
Crown Audio:
http://www.crownaudio.com
AKG Acoustics:
http://www.akg-acoustics.com
Studio Projects:
http://www.studioprojects.net
Audio-Technica:
http://www.audio-technica.com
The John Hardy Company:
http://www.imjohn.com/JohnHardy
Great River Electronics:
http://www.greatriverelectronics.com
Earthworks Audio Products:
http://www.earthwks.com