|5 GHz wouldn't do much good as how do you get two nexus 7, iPod touch, and android phones to connect to it?|
The devices you mention would have to have 5 GHz capable radios to connect. If they don't, you can't.
It was so agrivating I now connect my PC via wired again.
Wired is always going to provide better performance with higher reliability than wireless can so if you are an online gamer that's the only way to connect if you're gaming from a PC.
I hate to break it to you but if the issue you're having is interference, no other device is going to help you unless you're purchasing a 5 GHz router/AP and 5 GHz devices to go along with them. The issue, from what you say above, isn't the power of the device you own, but the number of other devices in the immediate area that are all over the 2.4GHz frequencies.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.