Exactly how critical a factor is speed regarding SIMM memory? I'm gearing up to max out my EDP, and am having a difficult time finding the suggested 120ns+ SIMM. 60ns isn't a problem, I believe they grow on trees. Would there be a significant difference using the 4mb 60ns in place of the 120ns? If so, any suggestions as to where I can order 120's? Thanks. Z.