dudemyster,
I don't know which post below you are referring to, so I'll just throw this into the mosh pit.
Mic'ing an acoustic is very cool. You'll need a nice condenser mic. The dynamic mic's will work and do ok, but a condenser mic is the ticket. There are even special ones for acoustic guitars. You can pick up a good condenser for acoustic for under a $100US.
But just having a condensor mic is not going to do the trick.
(note: read the posts on harmonics to help understand "how" your acoustic guitar makes its sound)
The real trick to mic'ing an acoustic is the position of the mic toward the guitar. For the most all around sound of your guitar, you would want to point your mic, at a slight angle from the fret board side and 4" - 6" away, to the 12th fret or where the neck meets the body. To get a fuller tone from the body you may want to position near the bridge or even further back toward the tail pin.
It's actually quite a bit of fun to hear the different tones your acoustic can make simply by mic positioning. And rest assured, your acoustic has a very broad range of tones. You just need to capture the one you're looking for.
I'm not sure, but maybe Kirk has some samples. If not, let me know and I'll make up a few samples in different positions. ( if anyone is interested, I'll do that .... 
)
Good luck dude! ( i just liked saying that! )
Les