2canister filters. 1 fluval 304 and 1 fluval404. that will be plenty. or you could go with a fluval 404 and an auqua clear 500 power filter.( hang on back type ) I don't know other brand products but ehiem and fluval are very good. Or you could get a wet dry filter. But these are more expensive.
yeah canister would be a good option..as raptor has stated..but if its too much money you could always go with two aquaclear 500...there fairly inexpensive and very easy to clean..and if you want to go with the real deal look into a wet/dry filter