When you buy the product, you can use the same activation on either a Mac or a PC.
Premiere Elements and Premiere Pro are very very different programs, so there's no comparing them. Premiere Pro is a professional program and includes features for editing professional video formats as well as high-level editing tools and the ability to interface with programs like Photoshop Pro and After Effects CC. Premiere Elements is a hobbyist and semi-pro program that's designed to be easy to use and to edit consumer formats like AVCHD and smartphone video.
If you'd like to see Premiere Elements in action, I have a free 8 part Basic Training tutorial series that should give you a nice overview.
Thanks for the answers. In the meantime I was researching a little bit too so I got to understand the difference between Premiere Elements and Premiere Pro. I even downloaded the trial of Premiere Elements and it seems very user friendly (compared to Corel VideoStudio, which is interesting because a friend who is much more experienced with video editing recommended VideoStudio over Premiere Elements to me). Anyway, I would still like to ask about the discount (together with Photoshop Elements) because I'm not so sure I'll be able to make the purchase by 7 January (and for the regular price, Premiere Elements is quite expensive compared to VideoStudio which still works).
This is a user to user forum, not Adobe, so I don't know what the discount is you're referring to or where you're buying your programs from.But if there's a discounted price for the bundle, I'd definitely go for it!
Well, assuming you're editing consumer video, like AVCHD or smartphone video, of course.