I am currently a student at a university and I can purchase software at academic prices. Currently, the software distributor (who is university run) is selling Adobe Production Premium for $99. Should I buy this CS3 version or is it worth spending an extra $150 for CS4? This is only for a hobby, as my main line of work right now is print publication (Newspaper and Magazine) but I know that with the economy, multimedia is pushing it's way in. Are there any restrictions on what I can do with the software?