log parsing programs?

[David Piniella <dpiniell@newssun.med.miami.edu>]

I have some rather large logs to go through; 3-5 gigs. What are some 
worthwhile log parsing tools/utilities? I would like to be able to 
condense the information and ideally also convert it to another, more 
readable format -- e.g., pdf or html. A GUI tool would be nice, but not 
essential.
(I'm trying to avoid using awk/sed to pull the data I want out of the 
logs). any suggestions would be most welcome,

thanks,

--
David Piniella
University of Miami