Ditch everything except the heaters and Coralife Aqualights(but change the bulbs to something between 5500K and 10000K; 8500K/6700K would look great IMO).
First off you don't need a sump,although it's great for hiding equipment from the display tank, it will be too hard to keep C02 levels up especially since your going with the yeast method. Also, you'll find out that plants will provide you with most of your biological filtiration and you may even have to start dosing nitrate to avoid any defeciency. Use a canister filter instead, an Eheim 2213 is ideal and you can even inject your C02 directly into the intake so you don't have to invest in a diffuser.
As for the substrate, Eco-Complete and Flourite are both great. Eco-Complete is easier to use(no rinsing) and it has a nice black color which will bring out your fish colors better. If you're willing to spend more money, ADA has finally become available in the US. I'm sure Jeff would willingly help you out, check his site out: www.aquariumdesigngroup.com
But I'm not sure are you aiming for a high ligh tank or low light? With 6.5wpg it means your going to need to dose macros every other day, and triple your micro dosing throughout the week.