I've had and used the Peavey Messenger, Fender PD250 and the Amplivox SW905. Personally I like the Amplivox SW905. Bigger then what you probably need but it held up the best. The Fender PD250 was damaged via travel the Peavey Messenger as actually held up pretty good. Don't worry about items that come with wireless mic's, I've found that I've had to replace and get seperate wireless mic's over time.

On the Amplivox, I like the built in CD and Tape player, the other systems you need your own external plug ins. Plus it has held up on international travel and held up in humid and not so nice conditions. Another person here likes the Peavey the most.