Paco....
A few more thoughts.....
Simply Discus is a great site even if you just browse the forum and pick up info. The people there range from breeders (the bare tank, no substrate, nothing else just Discus tanks) through to a number of hobbiest who are looking to provide a comfy environment for their Discus.
People have diff views on what should be kept with Discus, some people think it's sacrilege to put anything apart from Discus in a tank, other's (me included) think that as long as they are compatible tank mates (and you are not looking to breed) a little variation add's to the overall appeal of the tank. There are a number of species you can keep with Discus if you want to go that route and if you are in the UK (sorry didn't check)Practical Fish Keeping magazine has an article this month on just that point.
From my side I have only been keeping fish for about just over a year now and got into Discus about 8 months ago. I am not at the stage of wanting to breed just to keep a beautiful species in an environment it would thrive in. Like I said in a previous post although Discus are not the easiest to keep with a little more time and effort they aren't the nightmare people think they are.
Good luck if you do decide to go for it. Again hope that helps a bit.....