[squid-users] httpd_accel option + proxy mode

Hi all,

I want squid to do two functions:

 (a) act as a httpd accelerator to serve a set of a slow backend servers
living in a Intranet (reverse-proxy)
 (b) act as a (not transparent) proxy-cache server for the clients of
that intranet for domains other than that of those stated on the
acceleration options,

¿Is this possible using an only instance of squid?

thank you very much for your help..

--
Víctor