If you have that much lighting and CO2 you shouldn't have a problem growing plants. If you're not dosing ferts, marselia minuta is good choice, but I don't like the way it looks after some time growing as a carpet. Eleocharis parvula (Hairgrass) is a good choice too, had it growing even when I run the tank low tech. Right now my bottom is covered with Staurogyne repens (switched from hairgrass) and Limnophila sp Mini "Vietnam". I can hook you up with those two if you decide to go this way. They need dosing, though.
The only plant that pisses me off is HC (Hemianthus callitrichoides). It always grew a beautiful carpet for me and then started dying for no reason.