registered in 2001 !!!!!
And you ask those questions ... oh well .
Optimizing needs to be done on your workstation. To optimize in batch, I really like Webgraphic Optimizer ... Easy to set to the desire size/compression and no visible loss of quality.
http://www.webopt.com/
You cannot really limit BW... You are offering an all you can eat buffet .. Some eat a lot, some little like birds ... Pay the BW, but charge enough to members, mainly the trials ...
