get ready for retirement

Im between 5 and 6 years from retirement. I’m starting to think about it now, though. My job is a good one and I enjoy it, but I’m starting to feel the urge to own my time more and to be able to direct my life without having to go in to the job every day.
In 2010 I’ll be 60 and will have 30 years on the job. I’ll be able to retire without any significant penalty to my overall pension.
the pension is calculated on a formula base on years served and average salary over a five year period. Obviously it’ll be less than my full salary, but it will give me enough to live.
At some point I’ll decide that getting up early and driving to work in the winter is not worth the extra few hundred dollars per month that the salary will turn in. I’m not there yet, but I can see myself getting there. This is a change of attitude from, say, five years ago when the thought of retirement didn’t interest me at all.