how about the tetra ex 1200? or maybe a Fluval 405 i reccomend an eheim 2028 but that is out of your price range. These are some large powerfull filters but you could happily have an eheim 2026, or an eheim 2224 or a fluval 305 or a tetra ex 700 these are cheaper but i always go for the larger ones. The tetra filter is a bargain i bought one for £70 so thats what $120? looks great set it up yesterday but the intsructions are rubbish. I have a fluval 205 but to be honest mine is more trouble than its worth. Eheims have a very good reputation but can be costly.