We have a 13" regular aluminum macbook. We have 2 apple TVs, 24,000 songs, 10 gigs of pictures and a ton of video. We just bought a nice Cannon HD video camera and my wife snaps photographs with her Nikon SLR on every whim. We use an USB HDD to store all the songs and video, which must be plugged in all the time. This laptop is extremely taxed and it is time add another mac. 1. What would be the best option? 2. Can macs talk to each other, i.e. share files, picture, etc.? Can the macs look as exactly the same and being able to access the files in the same place? I don't want to move my wife's cheese. 3. Do mice work like the trackpad? We love the trackpad. It would be nice to have a faster mac to edit photographs and video. We have yet to upload video from our new camera because via USB it take forever.