So half my gigs these days are purely acoustic; amplified of course.
Let's hear from the acoustic players, show your stuff, describe your setup.
My setup through trial error and budget (bearing in mind I don't want a heap of extra gear on top of my electric rig) is this...
Takamine p3dc into boss cs2 into korg ax1500. Line out 1 of korg into peavey valve king amp. Line out 2 into tc helicon voicelive gtx, which also provides mixing some guitar into the P.A. feed, along with my vocals.
I also wanted to be able to pull off some shreddy bending and legato type things, so I experimented with string gauges. A lot. I've found my ultimate compromise between tone and ease of playability is 52w,42w,32w,18p,14p,10p. Tuned standard A=440.
This could be had for well under $2000, and sounds great.