hello can one use ati's 9800 pro card on a 4XAGP slot? and what does it mean when it says: Power connection to the computer RADEON 9800 PRO MAC EDITION requires connection to your computers internal power supply for operation. ATI recommends a 300-Watt power supply or greater to ensure normal system operation where a number of other internal devices are installed. Do macs have a 300wat power supply? do i need some kind of connector? also why do pc graphics cards go higher in onboard ramm specs? whats wrong with mac... why carnt we have the same?