Originally Posted by redburgundy
I'd say that you shouldn't buy a card that supports A unless you know you will be connecting to an A access point. Hardly anyone has an A access point.
That is starting to change as more and more 2.4GHz access points are out there interfering with each other. The 5GHz 802.11A spectrum is wide open. At my current abode, my neighbors have 7 other 802.11 B/G access points within range, all interfering with each other. So I use 802.11A and get great performance. I use the Netgear WAG511 which supports AES encryption, the highest available in the industry. And with Turbo mode, I get 108Mbps, not that I need it to access my DSL line, but more is better, right?