I need to get the best sound out of my 12-string for recording, but I've never had good luck with this before (the microphone I have never captures the whole guitar (I.E. it does the bottom 4 strings, or its just really quiet overall), and I have a soundhole pickup but that has never sounded good (especially since I don't have an acoustic amp).

Has anybody else been down this road before, and can they help a recording n00b such as myself?