[squid-users] squid cluster with 2 machines

Hello everybody.
I am thinking to install a squid server cluster but we have only 2
machines, 1 would have squid + dansguardian + delay pools + acl in one
machine, another the same plus the redirector used for the cluster
software (linuxvirtualserver or ultramonkey). I wanna install 2 machines
but users think is one, we wanna contingency, load balance, etc.
Who has something like this?
Suggestions?
Docs?
Info?

Thanks in advance,

-- 
Carlos Martínez-Troncoso Cera
Coordinador de Servicios Internet/Intranet
Universidad del Norte
Barranquilla, Colombia
Tel: 57 5 3509367