Cliff,
If you are interested in adding discus to a planted tank, I would recommend getting adults, or near adults. The younger discus have voracious appetites and need to be fed often. This makes it a challenge to keep your water quality to a standard for a discus to stay healthy. They are tough fish, but when their immune system is compromised...they can go downhill very fast. Thats why most people grow out young discus in bare-bottom tanks.
I have a few adults that I would be willing to sell in a month or two, or I have some that are about 4 months old right now that would be ready late fall or winter.
Catherine has some really nice discus that are almost full grown and would be a nice size for a planted tank.
Also, D'wyatt Green has some nice adults that I'm sure he could fix you up with.
We can talk more about it at the next meeting.
P.S...I LOVE that tank!
Kathy