Oh Melissa sweetie, you have come to the right place! Check out the post on the total colectomy group, there is a TON of information. I am also a nurse who has been through everything you have... and more! I had the colectomy about 2 months ago, and I am doing great.
As far as your colon prep, I have an odd idea for you. Go LYtely tastes awful, but if you mix it with tang (remember the old drink) its not as bad! For the colonoscopy though if you cant do anything else, they can do enemas until you are clean enough to get it done. I was in the outpatient center for 10 hours worth of enemas before my colonoscopy, but they were able to do it and get what they needed!