welcome to maast toney!

the choices now days are numerous, and more specifics will help make the decision. imo, the larger the sump/fuge the better. fairly common thought on return is 5 to 10 times the tanks volume turnover per hour. submersible pumps are quiet, but can heat up the water more than most externals. wait 'til you start thinking about skimmers.....

i guess i wasnt much help huh? i would suggest reading as much as you can find on the different skimmers and filtration methods before you choose.