I'm not trying to tell him, I am telling him... 256 MB of PC2700 is faster than 512 MB of PC2100 in most cases. The ONLY time 512 will be faster is if you have programs open that are using more than 256. And lets see here... I have AIM open, Yahoo Messenger open, two IE broswer windows, Outlook express, SETI@Home, and Norton Anti-virus all running... my commit charge is 200 MB. Now I opened MS Word... 206... lets open a few more broswer windows... Now I have 6 broswer windows and Paint open... and I'm at 247 MB... so... NO... 512 MB of PC2100 will not be faster than 256 MB of PC2700 for general use... if you play games, yes, you'll need more.