Need opinions on this acrylic cube

[spikehs]

I'm looking for advice on hole placement if you guys dont mind.

The system is going to be powered by a canister filter to provide all flow (kinda like ninjafish's tank)

I'll have the drain in the bottom of the overflow (as usual) but I'm trying to decide where best to put the return. The way I see it I have two options.

1. On the back, about midway up
2. On the bottom, in the middle, then angle the return a couple of ways to provide some good flow.

Thoughts? I think I'm leaning towards #2, that way we wont see any tubes on the outside of the tank (I'm going to get a second hole drilled in the overflow to provide a dry chamber for the light/heater cords)

Thanks!