What a difficult instrument to record! Took me quite a few years to figure it out. Firstly, it's extremely difficult to get the results you are talking about with a dynamic mic. Use a condenser. And use a small diaphragm condenser pointed at the 12th fret or thereabouts. My favorite cheap "pencil mic" is the Audio Technica PRO 37 - all Audio Technica stuff is pretty awesome. Avoid the AKG C-1000.
I also record everything with a low-cut (high-pass filter at 75 or 60Hz with -18dB per octave below, pretty standard stuff), except kick and bass - should help alot of tracks in general. Also a moderate amount of compression is usually needed on acoustics - a fast attack and medium release at 2 or 4:1. I like the dbx 163a which can be found for like $40. RNC makes great stuff for cheap. Of course an 1176, Summit TLA50 or EL8X are all awesome but they cost thousands and won't help you record or write a better song. Also, real tape compression is always preferred (by me!).
Yo! Hit us up again with other questions any time!
Much love - Michael
ps - favorite mic? MD421 - I've started to use it on literally everything.