Trolling through websites, I found an interesting link on this aircrack-ng tutorial page – a calculator to estimate the amount of time it would take to brute-force the WPA keys, based on a variety of parameters.
The calculator is HERE – you will need to turn on JavaScript if you are using No-Script (IE users, just ignore that tip… ^__^) .
I do not know how accurate or valid it is, but I imagine the aircrack-ng folks wouldn’t have linked to it if they thought it was junk….
Just upgraded my WAP with the dd-wrt firmware and increased the default mw values so I’m getting a much greater range, so was wondering how long it would take to crack my wpa key, thanks for the link.