Question : Problem: Two Physical Wireless Network Cards in One Computer

Is there any benefit to having two wireless network adapters enabled on one computer?  Would this increase your speed in any way.  The OS is Vista.  Thanks.

Answer : Problem: Two Physical Wireless Network Cards in One Computer

A priori, no.  Each wireless card gets it's own IP address, and each application will use one or the other, not both.  

Perhaps you could setup a bridge to share the connection and then the applications would use that?

If a bridge works out, there's no reason this wouldn't also work with wired NICs, two IPs, and a bridge.