What load balancing software do you use ?
jrockway: I use perlbal, which is nice-n-simple.  Add a few lines describing where your backend servers are to the config file, save it, and start perlbal.For our $WORK applications, we just have an apache that proxies to the backend FastCGI apps.  We don't have a ton of load, so that works fine.  (We might be switching to nginx, which is much simpler than Apache for this use case.)