cs4 is simply a vista friendly version of cs3
ive had it for a few months and there is no difference in the way the program runs
if you want the "free testers version" of i have it rared
no new additions
just works better in vista 64 bit
it is the exact same as cs3 extended v.6-10
i wasnt impressed and im new to cs3
hell i had 4 before 3
give it 2 or 3 days and they will have a portable version of it out on some of the warez sites.....the entire progrm will only take up between 50 - 100 mb....about a 5 minute d/l on rapidshare....atleast thats what i have heard...