Firewire 800 to USB 3.0 adapter?
I have a mid-2010 iMac that has a Firewire 800 and USB 2.0 ports (and no Thunderbolt port--though apparently I bought an iMac right before they started including them).
A lot of the external hard drives I'm buying now have USB 3.0 ports, but no Firewire ports. Is there an adapter that would connect my FIrewire 800 port to a USB 3.0 port on an external hard drive, AND take advantage of the extra speed offered by the Firewire 800 port? In other words, right now I'm just connecting the USB 3.0 external drives to the USB 2.0 ports on my iMac, and file transfers are at the painfully-slow USB 2.0 speeds. I'd like to connect them in a way that would take full advantage of the speed capability of my Firewire 800 port.
Thanks for any advice.
iMac (27-inch Mid 2010), OS X Mountain Lion (10.8.3), Two internal drives (one SSB)