You're welcome.
A single 65w fixture would be fine for medium light. You will want to put in alot of stem plants like Rotala rotundifolia, Bacopa caroliniana, Anacharis, Hornwort, and Ludwigia repens to name a few.
Plantgeek.net has a pretty good listing of plants by light requirement. Here is the medium low list:
http://www.plantgeek.net/plantguide_...=1&filter_by=3 and the medium list:
http://www.plantgeek.net/plantguide_...=1&filter_by=4. The low light list would be fine as well, but are probably included in those 2 categories.
As far as brand of fixture goes....Coralife is pretty good, same with Orbit. Satellite fixtures are ok as well.
Just make sure the bulb is for a planted tank and between 6000K and 10000K.