No I do not need the https content cached. I am really only using the reverse proxy as a director for the https. My firewall is not capable of redirecting ports based on names (if you know one let me know). I have limited hardware so I need to run multiple ssl vhosts. The only way I am aware that I can do this is to set a reverse proxy in font of it to interpret the host header and route it to the backend box based on an ip/port combination. Squid does this job for me now, but I would like to switch solutions for various reasons.
I know Apache does it also, but I like the web interface LSWS has.