I've always used the composer method for cs5 suites also managing to get Acrobat 9 in with as well. Only problem is with situations like a new OS you can't just install the pkg you made on 10.6.
This means going throught the pain of creating it again. With Acrobat 9 included it was tough but possible and I'm not looking forward to it. I'm going to leave it for a bit as no doubt by the time 10.7 goes live in our environment there will be CS6!
Next time CS upgrades I'm going the adobe package free installation so I don't have to do it again.