Personally, I use a pool with Stratum support, then I point all of my miners to a system (In my case a spare BeagleBone, lol) that is running the Stratum Mining Proxy.  I then have the Stratum Mining Proxy connect to the Stratum Pool of my choice and force all shares to be submitted via a single username/pass (via -cu and -cp flags).  I point *all* my systems, even those that support Stratum(like cgminer)... so not just getwork clients, to the Proxy so that I can flip them all to a different pool with only having to relaunch the Proxy pointing at the new pool.