If you perform regular water changes, feed high quality food and keep the water parameters constant the only bit you need to worry about is having a large tank.
I have just bought a 100 Gallon to replace my 60 G for the discus. They are lovely fish, i would not recommend them yet just because once you have them the work involved can be a little overwhelming.
Try out with something a little easier to begin with, buy a few books on discus care and browse a good few forums about discus.
Chris