[driverloader] driverloader or madwifi

[Bob Lockie]

I am going to be buying a wifi card.
I can buy an expensive dlink which is supported by madwifi or a cheap 
xterasys that is not supported by madwifi but is supported y driverloader.

I think madwifi uses a closed source binary interface so my question is 
what is the difference between that and driveloader?
Are there any performance benefits to using driverloader?