I picked up an old 'Lamp' model G4 iMac for about $50. It appears to be the last model, 17" 1.25ghz with DVD Drive I do have a few questions maybe some users here could help me with. 1. The clear plastic around the screen has little 'bubbles'. At first i thought they would just wash away (imaging if someone sneezed...that's what it looks like), but no matter how rough I get cleaning, they are still there. Is that just the nature of this model? 2. I'd like to upgrade the RAM. Now, I've already put a spare notebook 256MB PC2700 Ram stick in the bottom, but obviously the one inside would need to be replaced as well (it's desktop size?). Looks like I can max out at 2GB, which I will, but I wasn't sure exactly what RAM was needed for inside. 3. Is there a way to add Bluetooth to this model if it wasn't added via factory (I see it was an option according to everymac...but where would I buy the piece? I know mine does not have Airport installed).