I currently have a combo drive 15 imac, and I'm trying to decide whether to upgrade to a 15' superdrive imac (800 mhz) or the 12' superdrive powerbook. Both have their pros and cons...the ibook is a nice computer, but I could use the portability every now and again. The powerbook would be all but perfect if it had a larger screen (I don't want the tibook, and I can't afford a 17', or even the 15 Albook, whenever they do come out)...I do DV work in FCP, and the PB may not cut it, with the small LCD. Other than that, they're basically a performance tie. The iMac may have a faster HD, but that's about all. The 12' has no L3 cache, so it's basically neck and neck....my only other question is this...I know the PB can't be hooked up to a cinema display, so what can I hook it up to via VGA? I don't really know what VGA is....