I have a 13 inch black macbook with code duo 2.0 ghz. When I purchased the machine, I thought 1GB would be good but now after running parallels and simple windows app, my machine gets very slow. So I plan to upgrade my memory to 2GB. I currently have 2 512MB memory card so I believe I will have to exchange it with 2 1GB card. What do you people suggest to do? I have assembled windows pcs by hand couple of years back when I was a hardware technician (i dont touch hardware anymore) so if the upgrade is easy, I can do memory card replacement by myself. Also, the video output port in my Mac seems to be incompatible with all projector and slider input in my university. They all attach to windows style output (i dont know what they are called individually) so I guess I have to buy a converter. Again which place to you suggest for buying the converter?