I have a Skilter on my 20 gallon. It skims pretty well and you get the mechanical filtration with the filter pad. The smaller model is available at That Fish Place online for under $40.
Thanks rallysman, but I found one on craigs list down the street from me. I picked it up last night for 40 bucks and it looks to be in great condition. Its rated for tanks up to 150 gallons and all I have is a 20 gallon. Thank you again for all of the help!!
Craig is the Man!!! This is the best online community out there. I love people looking out for one another!! Mad props to Craig and all of his knowledge!!!!