The ZooMed 501 canister filter is a great little work horse, you will love it. I did get a extra wedge sponge filter for mine, that way I clean one sponge one week, then alternate to the other sponge on the next filter rinse.
Wow you're an active cleaner then! I almost never clean my filters. :p I probably should more often.
I have a 501 doing like 300% filtration on my Fluval spec + the original filter.
I think it is wonderful.