Re: Networking Solution...?
Welcome to CF!
A few thoughts.
Good choice in wireless routers, although I'm not an Apple fan personally, they make great products and everything I've seen about the Airport Extreme has been positive.
With the setup, you should have no trouble connecting all the users. Although, considering your Router placement, I would make a small adjustment.
Put the routers as shown above, so you get the maximum effective reach and possibly some overlap. Having them at the far ends of the house (depending on how large) may leave a gap in coverage.
With a 500GB data cap, you're looking at 55 +/- GB per user, per month. That's plenty as it's 1.8GB per day! But hey, uncle torrence could probably eat that up in a heartbeat.
Me: You'd think as the dominant species we wouldn't be so effing stupid.
J: We're just intelligent enough to be completely effing stupid.