[Kevin Sevcik]

First and foremost, you need a better problem definition. If we're talking wireless, then the environment matters hugely to reception. So you need to describe the area or at least mention if there's walls, girders, etc. that will get in the way. Second, your bandwidth requirements are entirely too vague. From your statement, I gather either you need to send 10MB files in a few minutes or possibly 500MB files in 15 seconds.