I went for the Intel 5300 from an eBay seller called "hellowifi" - it was stupendously simple to install on my 10v, all I needed to do was undo one screw, take of the plate on the underside, undo another screw, detach the antennae, replace one wifi card with the other, re-attach the antennae (to 1 and 3) and replace both screws. It's a better card than the stock Broadcomm 1500, however, as previous people have said if you're running OS X then you may need to hunt for drivers - Windows and Ubuntu drivers seem to cope fine. HTH.