Hi all. I need to upgrade my 2 macs to Adobe CS4 Design Premium. My iMac currently runs Creative Suite Premium 1 and my MBP runs Macromedia Studio 2004. Do you know if I need to buy 2 copies of CS4?. I'd like to run both machines together and can't work out whether I need to buy 2 copies. Also, to install, would I need to uninstall and then use the key codes from the original suites or key codes from the new copy(ies)?. Thanks.