I currently use a Macbook 2008 with 128GB of storage and I'm constantly having to go through my stuff and delete/move it to an external hard drive. And I only have 1 game, Adobe Applications (Premiere, After Effects, Photoshop, Flash, etc.), Microsoft Office, and just a bunch of other applications. I don't want to run into the same problem I have right now and having to clear/move stuff to make up space.
But I'm also trying to save money. And was just deciding whether is 500GB for all the stuff I plan to have is good enough or too much. Lke stuff I plan to have as in video editing applications, graphic design, coding, all stuff I said in the description, to which I don't know what or how much each applications will take up because I haven't really delved into that field yet.