I'm about to launch a new site. I'm pretty excited to now have more than one, running on the same "platform" code and running on the same server. The last development thing I need to do is set up caching. I also have to fix my scripts to handle the fact that I have two sites. I think for now I won't version my code and just release a new version of the sites at once. Its kinda risky, I've had registration issues before and didn't notice, but I'd like to get this out the door first. I need to be able to pay for my sites. I'm a little concerned about the multiple ip thing not working out but, I can't see why it would. However I wouldn't consider myself an expert.