Hello everybody.. I recently decided to swear off the evilness of PC and bought a used Mac.. I don't know too much about it... Well actually, I know nothing about my Mac, besides how to power it on and use iTunes.. It's a power Mac g5 tower with dual 1.8 processors.. Not sure the year of manufacture.. (late 2005 I think) I do know it's pretty out of date.. I do a lot of YouTubing, and I wanted to give Mac a try with video editing and photoshop.. I'm currently running OS 10.5.8.. I don't have iMovie in my computer and to be honest, I'm oblivious on how to get it.. Or what version is compatable with my machine and OS.. Can somebody ease steer me in the right direction? Also If anybody can help me find a programm (preferably free) to save YouTube videos to my hard drive for editing that would be most appreciated.. thank you so much.