I have a large itunes and iphoto library, use office 2004 alot, and dabble in some Adobe Photoshop CS and GoLive. Should I bother getting the 128 mb graphics card upgrade and the 5400 rpm HD upgrade in the 15" or 17" PB's? I'm a student so most of my stuff involves photo's for art, writing, and music. Or should I just buy one from the store and load up on Ram? Thanks.