http://portland.craigslist.org/wsc/boa/1365195507.html Add a Sanger V210 to that list.
Nautique air warrior? May want to check on that model. I'm pretty sure Centurion made the warrior.
The Moomba and MB will make ok wakes. The Supreme will make a good wake. An Air Nautique as well as the Sanger will make better wakes, in my opinion.
Things to look for:
V-drive, tower.
Perfect pass is a plus, so is built in ballast. Both of those things are easy to add.
Do take a good look at the sanger's, I know I'm a little partial, but most will agree that a v210 for around 18 is a great buy.