Discus are great fish and if you want to try them you should. I recommend all cichlid keepers grow out a group of discus at some point in there life. They are not overly hard to keep but you have to know what you are doing. They do not go with other aggessive cichlids and keeping 3-4 discus is a big no no. You need at least a group of 5 if you are going to keep anything other then a breeding pair.
So, no on keeping them with EBJD's
No to keeping 3-4 of them
Go to simplydiscus.com and read up on there requirements and you will be well on your way to discus success.