I don't plan on running enough water in the pump area to overflow my display. I'd rather burn up the pump than flood my living room, but that's neither here nor there. I think I'm going to go with the straight shot and the fork like Ace suggested and make a Durso style T out of the bulkheads like you've all mentioned. That should greatly improve the design.

The last thing I would like to know is what would be the best way to connect the pipe to my bulkhead? Should I thread it in, or just glue it?

I knew I should've started this thread BEFORE I went to Home Depot. At least I still have my receipt.