Re: Good pickup for acoustic...?
I installed a Fishman Eclipse Matrix Blend in my Martin D-28 and it works very well. I have a 2002 Taylor 710 CE with the Fishman Stereo Matrix Blend, and it works well, though the Martin is a better sounding guitar. The Eclipse Blend is about $250, and the Eclipse Aura, runs about $300.
Still, I would get some kind of a small gig bag, and get yourself a Shure SM-57 and mic clip, a good guitar cable, a good MIC cable, and a direct box like the Radial Pro DI Passive Direct Box to take to gigs with you. Sometimes, you just can't beat the sound of a good microphone; and the Shure SM-57 is a good, seviceable, professional microphone. It is a good match for the Taylor. The Direct Box will come in handy on bigger stages and will make the sound of your guitar's pickup compatible with a pro mixer, giving you less noise, etc. Taylor makes a very nice gig bag that you can use to haul these items to the gig, with plenty of extra room for capos, picks, strings, string winder, side cutters, nail clippers, etc. STRONGLY Recommended.
There are a lot of good pickups on the market. K & K and L.R. Baggs also come to mind. In any case, I prefer the dual-source (mic or magnet pickup plus under saddle transducer) systems. I am very happy with my Fishman pickups.
Good luck!
Bill