I'm trying to boost the wireless signal strength to my desktop which is connected to a wireless-n network created by an apple airport extreme router. Due to reasons that aren't worth getting into I can't move either the router nor my desktop, and running a cable isn't an option either. So I figure adding a second router as a repeater is my best option, but I have never attempted this before so I would appreciate a bit of guidance.
It looks like adding a second airport extreme router would be the simplest route, and likely be the most pain free route, but I'm not exactly made of money and $180 CAD is a bit tough to swallow. How would I fare trying to use a cheaper, non-apple wireless-n router as a repeater for the airport extreme?
And finally, what kind of performance should I expect if I can get everything humming along nicely? Does adding a repeater create noticeable added latency?