Hi, I'm a web developer (php/mysql) who also does a fair amount of flash & photoshop work as part of my job. As a hobby I play around with video and music a bit too. Right now I have a Dual 867 1.25GB ram Bus speed 133 L2 Cache (per cpu) 256K L3 Cache (per cpu) 1MB The graphics card is a 64MB Radeon (something, maybe 9600?) It's a nice workhorse machine, however I'm both lusting after, and feel as though I have 'justified' purchasing one of the new powerbooks. The mobility is appealing, I like the idea of working from the couch or a cafe now and then. Though for the most part I will be hooking the pb up to a 19" CRT monitor (for now) to use split screens. I was wondering if people could weigh in on speed differences. If I bought the 15" 1.5GHz Powerbook (w/ a 167MHz bus) would it be a faster machine? I realize I'm not going to be stepping up to a radically faster machine, but my hope is that I wouldn't be stepping down. Thanks.