I agree...depends on what fish you will keep and personal preference too.
I personally like Aquaclear HOB filters. I think an AC30 or AC50 would be good, depending on what fish you will have. The flow is adjustable, so I think as long as you don't have any fish that just hate current, an Aquaclear 50 would be fine.
Or you could go with the suggestions above...totally depends on what you like. I've heard Bio-wheel filters are noisy, but I've never had one, so I can't say that for sure. I'd look at all the ones mentioned and see which one is cheaper...especially if you are wanting a good deal. All brands mentioned are good ones!