I got a notice from Lightroom that my hard drive no longer has enough space to import my pictures. I currently use the bottom MacBook (13" white one which cost $999 new, now lowered to $949). This computer wasn't meant for handling RAW images and editing, but I didn't plan on doing any of that when I purchased it. Should I just add RAM to this computer, or get a MacBook Pro? I can't even finish importing my images from today because I don't have enough space. Will a MacBook Pro be significantly better for handling images, and will it be more resistant to being filled up?