Hi, I'm looking for help with my BT Home Hub. I use a USB Dongle to connect to it wirelessly as my computer can't do it alone. I was just wondering if the speed is affected by the dongle, and if so, should I get one that is advertised at "300mpbs" rather than the typical "54mbps" (I was thinking of getting this one.) I'd just like to give the speed a little kick for things like YouTube and streaming videos. If you can make heads and tails of my post I'd appreciate any help you can give. Thank you.