Simsi - 11:48 pm on Nov 25, 2009 (gmt 0) This may have been pointed out elsewhere but worth a mention just in case.
Not a rich snippet as such, but I just saw a SERP that had an unusal URL format. You get the Title line, then the description as normal, then under that you normally get the URL (unlinked) in green text. In this instance it had "www.domain.com > directory" where the "directory" part was linked via a Google redirect URL. Note the > rather than a / seperator too.
This may have been pointed out elsewhere but worth a mention just in case.