Old Thread But Great News for MAc and PC Laptop Owners I know and trust this company and just bought this for my MAc Pro it boots up the hard drive a couple ways. In Mac hold down the option key and or once in MAc OS tell it to startup disk the external Sata (eSATA)
Worked 100% on my Mac Pro 2008 and this works on Laptops Mac and Windows
One catch its expensive but can go up to 6G WOOOOOOOOWs
Only card out of TON I have tried that will boot at least MAc OSX dunno about windows/Boot Camp but I think theoretically it will with the "Option" key wait and be patient and once you choose the sata drive maybe you can boot boot camp dunno? Actually yes you can once you set the startup disk to the esata boot camp windows will boot!!! Wooooooooot
http://www.firmtek.com/seritek/seritek-6g/