Hoople - 8:43 pm on Jan 31, 2011 (gmt 0)
I use my titles as a keyword rich natural sounding 1 second sale pitch type of headline. I try to front load (beginning) keywords when possible. I try to stay with the keywords (from click history of those visitors who actually bought) to determine what keywords get into the title. To me the other less directly related keywords only drain bandwidth and raise the bounce rate!
I then expanded on the title in the meta-description tag in a 'summary' writing style to providing more related keywords (information).