I have an iMac, and I really need photoshop, and iPhotos photoshop is, well, horrible... If you have any idea where I can download a photoshop for an iMac, I would be so thankful!

There is a free program that works just the same as photo shop called gimp. if you Google it it should come up. Its pretty good. Its a free version so there aren't many updates and stuff but for the most part it gets the job done.