Dear Lazy Web,
I've got web servers and I want to load balance them. I know, I'll use a proxy server! 
I see two obvious choices: Squid and mod_proxy in Apahce2.
Just getting out and grubbing around in Google I don't see a whole lot of difference between the two. From my POV Squid is easier to install  but I'm not afraid to get down and recompile Apache if I must.
What is your verdict on using one over the other, Lazy Web?
 The obvious rejoinder: Now I have two problems!
 Solaris is the operating system of choice. Apache2 and Squid are software packages  from Coolstack but Squid 'just works' and Apache would need to be re-compiled.
 Yes i'm lazy. Compiling an application from source is fine if you gotta do it but having software Just Come as a package is handy.