tedster - 12:12 am on Nov 17, 2007 (gmt 0)

This is a very natural thing - if your title is well written, then your description might well use at least some of that vocabulary. Just look at the first page of almost any SERP and you'll see this practice in the top ranked sites.

What I would avoid is having the title and the meta description be exact duplicates of each other. As long as the description expands on the title, I can't imagine a problem and certainly have never seen one with this cause.