Appleinsider reports that they now have corroborating infomration that Apple will be updating their PowerMac line at MacWorld San Francisco 2004. The best information available to the rumor site indicates that the new models will come in at 2.0Ghz, 2.2GHz and 2.4GHz configurations. Previous notes, however, had indicated that IBM was producing chips as fast as 2.6GHz at this time. Other expectations remain the same with the use of 90nm PowerPCs, 533MHz DDR II RAM, a faster system bus (up to 1.5GHz). Xserve updates are also expected, but few details are available.