If you are going to use the equipment to earn money with you'll need something that's as bullet proof as you can find and afford. Behringer is not a piece of gear I would consider bullet proof. Your new piece may or may not work out of the box, may fail after a very short time and will certainly fail at sometime down the road when you least need it to fail, ie; in the middle of a gig.
Go with a better unit. Any of those you've noted will serve you well and Yorkville should certainly be in the mix.

Don't disregard a decent mixer and a pair of powered loudspeakers in lieu of the powered head.

Just what do you consider small and medium size?
For the latter you really should consider a sub setup as well.

Last edited by DakLander; 10/30/08 01:45 AM.