caustic - 2:56 am on Sep 29, 2003 (gmt 0)

The common work-around for this is to use delimiters like "-" or "_" to separate words.

True, and its a common mistake. Google doesn't recognize the underscore as a space, only the hyphen, so use hyphens for file names if you want to get the benefit of keywords from file names as anchor text.

hyphens:
[google.com...]

underscores:
[google.com...]