Yes wet drys are the best IMO. I cant think of any other way to filter my 300.
Its the easiest to maintain and work very very well. Try one out you wont want anything else after that.....
I'm cheap so i would recomend building one. There are several threads in the setup and filtration/DIY forums. Take a look around there and if you have any questions I'm sure we can answer them. Another advantage of building one is you can make it the size/capacity that you want.