[fish_4_all]

Will second Ludwigia repens and I would add:
Any crypt
Pearlweed
Stargrass

I know might have already been suggested but I am terrible with their technical names

One question, are you injecting CO2? If you are then a clover or HC would be a nice addition as well as Echinodorus Tennelus, I think, Lone knows which one I am talking about. He has it in his tanks and it is a really cool ground cover that is almost grassy in look but grows faster and better then micro swords.

 

[fish_4_all]

http://woo.gotdns.com/Aquarium/Lighting.htm

Anyhting on the chart for your tank that is high light needs to have CO2 to help control algae. I don't know if your tank makes the chart or not. I have 3.3 w/g gallon over my 10 gallon tanks and I do not need CO2, I use Excel. I am still under moderate light though. I still have plant growth beyond belief and i run an airstone 24/7.

Remember that if you don't inject CO2, an airstone is needed to help both CO2 and O2 replenish itself because the plants will suffer without it and the nautrual balance will drop without some good surface agitation.

Try it without it at your light levels just make sure to do two things. Keep up with your water changes and make sure your plants have all the nutrients they need or algae will be the result, even in lower light tanks.

Wolf is roght, CO2 will result some awesome growth but you really have to do a lot to keep your dosing right to prevent massive amounts of algae. Keep us posted and we will help you work the tank the best we can the way you want to do it.