Me again, I think I might have found a solution for getting you Wifi to work.

I downloaded the Netgear driver pkg and had a look at it's content, what I found was RTL8187Bl.kext

So why not trying to get it working by using the RTL8187B Driver by Realtek?
The stuff needed for trying my idea you can get here.

First you should remove that Netgear stuff by executing "NETGEAR Uninstall.command" Then just install Realtek Driver package. If that doesn't work you may try to delete RTL8187Bl.kext and apply the RTL8187Bt.kext from the Netgear package instead. Editing the kext doesn't seem necessary as Device and Vendor IDs mach.

I hope this will help you.
Otherwise I recommend WLAN stuff with BCM4318 or BCM4311 Chipset I can confirm out of my own experience, that these work great with OS X.

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