I like it! Power heads are a great idea and I see your using them. Good call. Good luck with the plants. No plants lasted in my tank.
One suggestion I may throw out there. And others can chime in of I'm wrong or right. Or maybe it's just more like an opinion.
I like to keep the front open for "free swim" all my scape is on the back stacked and on the sides.
Listen... Either way! Amazing job!!!
Here's my tank it has side shots to give you an idea of what I'm talking about.
http://www.aquariumadvice.com/forums/members/46421-albums11717.html
Oh and congratulations!!! Your my 12,000th post!!!