I wrote a little mod, but I wrote it for RC3, so if you are having any trouble with it, let me know.
http://www.osticket.com/forums/showthread.php?t=1134(http://www.osticket.com/forums/showthread.php?t=1134)
http://www.osticket.com/forums/showthread.php?t=1133(http://www.osticket.com/forums/showthread.php?t=1133)
I think in RC4 I had to modify scp/admin.php as well ~ line 311 & 325 I deleted
Format:( plus the ) at the end. That way it allows the html to be stored in the database. I only did 311 and 325 as I only use the autoresponse and reply templates when dealing with customers.
I am not sure of how this will work with email fetching. We don't use it, so it wasn't a concern.