Hi Folks, I am taking the plunge and have decided to upgrade my 500Mhz iBook to the full 640MB of RAM. I currently have 256MB. Thus, I am looking for a 512MB chip. Any recommendations for high value/competitive cost vendors? My local Apple dealer can get one for $129, but I thought they were going for under a $100 these days? Also, I would like to share a GOOD NEWS story. On Tuesday I sent in my iBook to have several classic problems repaired that I have been experiencing.... loose internal power supply, loss of screen picture and airport reception when the screen is tilted at certain angles, and a combo drive that doesn't recognize most CDR's. By FRIDAY I had it back with everything repaired and replaced. It even looked cleaned up. In all honesty it works better than new. Great job Apple! Tom