Re: Recording setup for acoustic
Ah sorry, three real different types of mics:
Dynamic - uses electromagnetic induction to produce sound, usually used on instruments (SM57, MD421) but also used for broadcast mics like the SM7b or RE20.
Condensor - uses capacitance change to produce sound, for instruments and vocals but generally not percussion (again, *very* general statement). Two main types, small (SDC) and large (LDC) diaphragm. SDC's are generally used for stringed instruments, drum overheads, pianos, spot micing in general. LDC's are generally used for vocals, room micing, and sometimes stringed instruments/overheads. LDC's are generally "bigger" and "chunkier" sounding, wheras SDC's are usually "smaller" and not necessarily more detailed but tend to have a certain charm to the high mids/top end.
Ribbon - uses a ribbon as a diaphragm, generally darker than either a condensor or dynamic, more sensitive to sound pressure levels (SPL, aka volume). Generally used on rooms, guitars, stringed instruments, sometimes drum overheads/cymbal spot mics.
Take none of that as a rule - I violate the suggestions above all the time (SDC on snare, LDC on guitar amps and kick drum, dynamic mics on vocals and acoustics, etc).
Something like the mentioned AT2020usb would be perfect for you, I think. It plugs in via USB and uses your normal soundcard for output, so it's pretty fool-proof.