AC 110/Emp 400, along with a canister. Eheim 2217 is probably best for the money. Rena xp3/4, fluval 404, and Marineland C-360 are also fine. Or get an FX5, if you want a river.
It would be hard to beat this setup, you could go with a wet/dry sump or another cannister but hte eheim 2217 is the best value in cannisters currently.