oh and I need a muzzle device... any recomendations?
I have a Yankee Hill Machine Brake (Phantom YHM-28-5M) and love mine... Its comes in a tactical aggressive style and a snag free style. I have the aggressive one, which is pretty sharp for a more hand-to-hand situation. It would really hurt to get hit in the face with that thing, would probably take a nice chunk right out of a bone.
But it will put a hole in your sheetrock from walking down the hall and bumping into the wall when you turn around... Ask me how I know...

Even worse when the wife finds the nice star shaped hole.. oops

Its not so sharp though that it will cut you, just sharp enough that it will make some good sized holes...
Anyway, on the compensation end of it... It keeps my barrel straight and on target even during rapid fire. Double tapps are right about 1/2" apart... It really a nice compensator. The snag-free version is exactly the same compensation wise without the face gouging spikes... The other nice thing that for critters, if you are shooting prone the bottom not cut out... So you aren't kicking up dust and debris
Price wise it's an awesome brake for $35 and beats the hell out of the stock birdcage style...Here is a link to them both...
http://yhm.net/index.php?main_page=product_info&cPath=2_7&products_id=103