Hmmm...got to looking at the specs and am wondering: for multimedia (audio) apps that really push these macs to the limit (I typically use 10-20 instances of virtual synths, samplers, vst plug-ins etc.), would it not make more sense for me to go with the faster 5400 rpm drives as compared to those 4200 rpm drives that are on sale? Or do these new Hitachi drives make up for it with its fast ultra-DMA technology etc? Are the drives on sale at Trans intl the new Hitachi drives? ...confused...