I can get you a U tube style overflow for about $50.00. Not really cheap, but I don't know anywhere you can get a really cheap one. You don't want to get too cheap on something that could flood your floor 8O . If you're handy with tools, you could DIY
one from acrylic. Have you done a search on this site? There are quite a few threads that deal with DIY
overflows. Also, check our "links" page out for links to some DIY
Pump selection depends on what kind of pump you want to use. If you want to go with a submersible, I'd probably go with a Mag 7. If you want an external pump, I'd suggest the Blueline 30 HD
. You want at least 550 gph
or 10x tank size flow in your tank. Of course, you can have more flow than this...you just don't want less. I would probably use a couple of powerheads or a closed loop pump to increase flow if you wanted to though.