Firewire adapter for FreeAgent Pro

[Lewis22]

I picked up one of the 750GB Seagate FreeAgent Pros at Best Buy a couple weeks ago ($199.99)

The only problem is that it is eSATA and USB only, no FW...

I know they sell them with FW, and the Directions say if you have a FW model to take out the USB adapter and pop in the FW adapter...

I am curious if anyone knows how i can get one of those adapters...
or if anyone has one they arent using.

Let me know if you have any ideas
thanks
Lewis22