(Yes, replying to myself! 
I have found out through futher research that this question/topic is probably more geared toward a water garden rather than, strictly speaking, a planted aquarium. Although to me, the only main differences are: (a) it is not in a glass container, (b) it is outside most of the year. I ran out to my local B&N last night and picked up two books on water gardens and found that there is quite a lot of crossover in practice and knowledge between aquaria and water gardens. If I find out any sources or do one of these projects, I will document it with a slant toward aquarists in case there is any interest.
-J
I have found out through futher research that this question/topic is probably more geared toward a water garden rather than, strictly speaking, a planted aquarium. Although to me, the only main differences are: (a) it is not in a glass container, (b) it is outside most of the year. I ran out to my local B&N last night and picked up two books on water gardens and found that there is quite a lot of crossover in practice and knowledge between aquaria and water gardens. If I find out any sources or do one of these projects, I will document it with a slant toward aquarists in case there is any interest.
-J