I use the design premium CS3 package, photoshop, in Design, illustrator etc...
I had to buy a copy of Windows 7 to load on a laptop as my new camera (7d2) would not work with XP...
Also have to convert the camera's RAW files to DNG's to be able to open in Photoshop CS3...
However, my XP office suite still works, even the email, so no need to update any time soon...
I also use remote drives for all storage, including placing 'my documents' on a remote drive, due to a serious crash a few years ago that saw me lose ALL the files (photos and text) of our magazine's cover car...
Tense few days until the drive could be read and copied...