Anyone use an external hard drive with a card bus SATA with a 15" powerbook? Is it faster than FW 800? Any suggestions about setting up a 500G external for home video/music/photo storage? I was thinking about making it wireless also. Any ideas? Thanks C
15" 80G 1G RAM Mac OS X (10.4.10)

Given that the Cardbus bus isn't faster than FW800, then the answer to your question is, 'No.'

Mac Pro 2.66 Ghz; MacBook Pro C2D 2.33 Ghz; MacBook Pro 2.16 Ghz Mac OS X (10.4.10) Intel iMac C2D 17 "; MacBook 2.0 Ghz; 30 GB iPod Video (Black); iPod Nano 2 GB