So if I install lion will I still have all my files on my computer like my songs amd movies and everything?
And if I don't have a magic mouse or magic trackpad is it still worth it?
Thanks
Well, you'll still be able to use fullscreen apps, mission control, launchpad, the new (nicer) Mail.app and Address Book, air drop, enjoy the enhanced security (e.g. ASLR, sandboxing), ... Check out the list:
http://www.apple.com/macosx/whats-new/features.html
The multitouch gestures are really nice but they are not the only thing that changed.