Mmm.., apparently my recommended AP is still sold:

http://www.amazon.com/TP-LINK-TL-WR720N-Wireless-150Mbps-Internal/dp/B008IFXQIW

At USD$21.50, it is a tad expensive (only cost me CAD$12/each when I last bought several), but still an order of magnitude less than some of the otherworldly suggestions here!

Looks really good on a wall or ceiling, too.