I'm currently using Adobe CS3 Design Standard on a pc, it's a student version and in german. I'm tired of switching from my mac to pc everytime I need photoshop or indesign that's why I'd like to purchase an upgrade to mac, and if possible an english version. Is that possible and how? Also, how much does it cost (student version)?
CS3 is not eligible for an upgrade. As of January 2013 the number of versions back that are eligible for upgrades was reduced, so at this time people can only upgrade if they currently have CS5 or greater. Prior to January you could have gotten an upgrade for CS3.
Visit the product pages or the software you wish to purchase for information about pricing.