Since you said around $100,depending on your stock,a Eheim 2215 or 2217 would be my choice. They are very quiet,and only need to be opened every 3 or 4 months(or more).They will keep you water crystal clear. Kens fish has the best prices on them.
With shipping,one will be a bit more the $100,but worth every penny.
http://www.kensfish.com/eheimcanisterfilters.html
With shipping,one will be a bit more the $100,but worth every penny.
http://www.kensfish.com/eheimcanisterfilters.html