Sulynn -
I had a 2 level done Aug. 2002. C5/6/7 with donor bone and full hardware. I've got high blood pressure and I'm a diabetic. When my surgeon opened me up, he had underestimated the job. I'm a big guy, and he told me later that it was the most extensive job he had ever done.
I would suggest that you quit smoking. I rather have you around longer.

As for a collar, my NS doesn't care for them. He gave me one to hang on my wall. I wore it twice, once when a nurse forced me to and once when I had to drive 600 miles to attend my dad's funeral (a stupid move, but could not be helped).
I had some complications that kept me in the ICU longer than expected. As a result, my legs were weak and I used a cane for about a month. I also used a Fusion device from BioTek for about 4 months which is supposed to help align the calcium ions (atoms, electrons?) and help the fusion along. Just 2 electrodes taped to my nect and I carried the device in my shirt pocket (about 3 ounces with the 9V battery).
I know that you will do well in your surgery. I will be pulling for you. Make sure that you take care of things that you will need after your surgery. Some suggestions: (1) double your bill payments so you have a credit balance so you don't have to worry about sitting down and writing checks (2) move everything that you will need down to chest level to waist level. (3) Buy cans of soda, not 2 liter bottles, you will have problems carrying heavy objects for a while. A can of soda is a heavy object, trust me. (4) Buy a lot of soft food... yougurt, applesauce, jello to help your throat out. (5) Ask your doc to issue you a temporary handicap parking permit.
Best of luck. You will do fine.
jdog