HELP.

OK, I need a pickup in a guitar for live performance. Here are my needs:

1) Guitar is a Collings OM2H
2) I play mostly fingerstyle (james Taylor, old folk, country)
3) Coffee shop venue through their PA (usually a Bose)

I want a natural sound and easy to control system.

My guitar dealer is recomending to me the iBeam product. In reading the options here I am tempted to go with the iMix system.

Opinions are welcome. I am off to Namm in 20 minutes so I'll return to read this in 2 days. Thanks for any help.