overflow/sump questions...

[Scorpion]

hi... i'm not sure if these questions have been asked before. i did a search and was unsucessful. anyways... here are my questions.

1. what size overflow box should i purchase for a 33 gal tank??

2. what size return pump should i purchase for a 33 gal tank??

i'm guessing that the flow rate of the overflow box and the pump should be similar, if not the exact same.

i'm planning on just setting up a sump so that i can move our skimmer and heater down to the bottom of the stand (out of sight).

also... what other questions should i be asking if i wanted to set this up.

thanks in advance.

-scorpion