I am not a network admin, so that is somewhat of an odd question for me but may be routine for this crowd. Is there a means to have a single machine with 2 NICs share internet access without ICS? The ...

Well, you can always 'test' to find out what ports PC Anywhere uses. Linksys provides a logview program on their ftp that if you enable logging to be sent to a computer, and open up the logging ...