I'm looking to setup a dedicated WiFi access point in the house thanks to an influx of tablets, smartphones, and laptops in the house. The house is currently setup on a wired router which wasn't very cheap and has served me very well the past few years, so I'd like to keep it. I was using a USB WiFi dongle with Connectify, but the range is very limited and won't serve the whole house. Plus I'd like a solution that isn't dependent on a PC being powered on, so something that I can hook up to the wired router to create a WiFi network is the route I'd like to take.
Problem is is that I'm really not all that familiar with the options to get me where I want to go. The only thing I'm aware of is Apple's expensive Airport stations. I did a little digging for cheaper alternatives that I think are on the right track (this cheap thing, or something like this), but I'm not entirely sure if either is what I'm looking for. Could I even just plug a wireless router into an ethernet port on my wired router? I'm not in the market for anything fancy or expensive (as close to $50 as possible); I just need an easy way to get all these wireless devices onto the web. Thanks in advance for any help!