Lots of folks will flame you if you do this. Sigs belong at the end of
the message, not in the middle. Also, RFC1855 says that replies should
go *below* the quoted material, not above it as you want to do. If you
use the not-quite-standard-but-common "-- " (note the space) as the
first line of your sig, quite a few MUAs will truncate the quoted
reply at that point. If the original message is below that it will not
be included. People will be unhappy with you about that, too.
If anyone really cares about reading your sig, they'll look for it at
the bottom of the message.
Ilife is a lot easier when folks just follow the RFCs. Someone ought
to tell M$ this...
-rex