I had quit for 4 yrs and had started over again, what a moron I was for doing that.
Well it's 2yrs since I had a smoke, cause I had "re-quit" in July of 2005, on the 19th to be exact, the day I had major corrective nasal surgery.
Hang in there, and don't give up trying, if you slip up, get back on track. It's helpful to come here and post/pm/and/or chat during the time you'd be having a smoke, I know it helped me, but then again everyone is different. Keep the faith.