[squid-users] Smart load balancing

Hi!

I'd like something like this:

RealServer1____
               |
RealServer2----|
               |
               |_____LoadBalancer...........BorderRouter........Internet
                    .
                    .
                    .
Realserver3..........

Where LoadBalancer has a public IP address and redirects all requests to (or:
returns to clients pages fetched from) RealServer1 and RealServer2 when they're
working O.K. (i.e. they answer at port http with 200 HTTP code) and to
RealServer3, when both of the two first servers don't answer or return e.g. 500
HTTP code. Is, in your opinion, possible to create such an environment using
Squid as 'LoadBalancer' ?

TIA,

R.

-- 
"First they ignore you. Then they laugh at you. Then they
fight you. Then you win." - Mohandas Gandhi.