To paraphrase (somewhat) a lot of other posts. Buy when it meets your needs, right after an update cycle if you want the best product for a period. Apple products will generally be the best bet unless you buy right before a major upgrade is due. More succinctly, everything is a fairly good bet after tomorrow except the PowerBook series which will probably go from a G4 to a G5. The latest G4 PB (relying on rumors) will be worthy, but nothing like what the G5 PBs will be. Adding to that, when the G5 PBs arrive, the ibooks will probably inherit the best G4 chips, which will make them a great deal if the price does not change. There is a lot hanging on when the PBs finally reach G5 chips, iBooks wise especially.