RapDiver,
If you don't want a sump, don't get one. I agree with Peej, get 2 skimmers. I would rcommend you place them at opposite ends of the tank, however.
About a year ago, I put a Remora in my 30 gallon. I was already running a BakPak and just wanted to see what would happen. Well, they both pulled junk out. The Remora pulled out more watery junk, while the BakPak's out was much more concentrated nasty stuff.
My bio load in the 30 was modest, a cleaner shrimp, snails, hermits, a clown, etc. That would be my only caution to you: Watch the amount of the bioload in tank.
My $.02.