Almost every computer my family owns is a laptop using 802.11g on the 2.4 GHz bands. Unfortunately, as my neighbors move to WiFi, the bandwidth is dropping. I'd like to move all of our laptops to the 5 GHz band. So, I'm looking for a cheap solution that doesn't need to support anything that the built-in hardware can already handle. At home, we'd disable the internal WiFi adapters and use the dongles, elsewhere we'd unplug the dongles and re-enable the internal adapters. (I've tried using Google, but it seems like every hit is for "does not support 5 GHz".) Thanks!