Ashsky,
HERE is a link to a pretty nice website. You may be able to just copy/paste some of that into a notepad and print it - or just print it all.
I would give them information, but keep it simple so it's easier for them to remember. I'd explain your seizure type and maybe a copy of the actual medical description of it along with your own (heaven knows none of us ever fit the exact definition they give). I'd also tell them your medications and just make a copy of the side effects listed, and let them know if any of them have any impact on you (such as a disturbance in your short term memory).
Having a form for them would help if you do not have a medical id bracelet. Let them know your 'official' diagnosis (Seizure type) and medications along with the phone number to contact your doctor or loved one (whoever would know what to do faster) in the event of an emergency.
Best of luck to you, and that's awesome you get to work! I can't wait until I get to work again.