Since Pro Tools is now linked to the iLok key rather than the hardware or a serial number, you can have one license on two machines by porting the iLok between the two of them. This prevents you from running them concurrently, but you won't need a second license unless you want to not have to worry about porting around the iLok.
The 003 will work with the new iMac and Mac Book Pro with Firewire 800. You would need to have a 9 pin to 6 pin cable to make this connect.
Ultimately, you would need have a Firewire drive, the Cable and the upgrade to Pro Tools 10
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