Photoshop elements 11 I am comparing prices of Photoshop Elements 11 for our new iMac. Some of the ads say 4 gb space needed for download. Others are less money but only need 1.5 gb. Are there different versions of elements 11 out there? Why the big diff in space needed?
Never heard of different version of PSE. 

Although, Adobe says 4GB of disk space needed. The 1.5 Gig you might saw seems to correspond to the size of the installer.