Honestly, I have no clue. I have some vague 'visions', but with all the plants out there. The choices...the choices. I think the hardest thing for me right now is to learn more about planted tanks in general while trying out things and gain experience in what works/what does not/etc. A glance at the aquascaping forum was just a mind-blowing experience what people are doing with their tanks!
Certainly right now though, I am in need of some rooted that I'd love to get a hold of down the road. Now given the extra tanks, I have tons of options and possibilities to go with. As such, I'd love any low-med light plants you have to toss out.