Boomerang setup

[jarrod <sinclairsigns@hotmail.com>]

Hi, I am new to looping and was wondering if anyone would be happy to 
provide some advice on looper/amp set up?.  I have a boomerang phase lll 
with an electric acoustic and small amp.  Ready to upgrade the amp I'm 
looking at a fender acoustasonic 150.  I plan to run a mic (Shure sm57) 
for vocals directly into the amp.  But I would like an additional mic for 
some percussion instruments that I could loop through the boomerang along 
with my guitar, and I'm not sure how to do both, and what else I might 
need?.  Appreciate any helpful assistance.  
Cheers, Jaz.