bodybuilding at home

I just got certified as a personal trainer so I have a general idea of the basics. I want to become a bodybuilder but I have two jobs and not alot of time to hit the gym. Besides, gym memberships in my area are psycho expensive. I know that there are alot of other trainers out there that are much more seasoned and know alot more about building than I do. I was wondering what kind of equiptment I would need to be able to bulk up all aspects of my body at home, and I was also wondering what supplements will be necessary, keeping in mind that I gain weight easily and have a heart disorder that won't allow me to have any kind of stimulants.
I know that most bodybuilders prefer free-weights but I was also wondering if there were any home gyms that are highly recommended.