I have Wifi "N" in my house, and it's great for my laptop, but my PS3 and Xbox 360 and Wii are in the far corner of my basement, through DD and GG, stone walls, etc, etc, that I had very weak connection. My PS3 would take forever to download those frequent updates they had. Xbox Live would randomly cut out at times.
So I tried this:http://www.amazon.com/NETGEAR-Theate...9561224&sr=1-3
and am very happy with the results. Extremely noticable difference in download speeds and the Live had not loss connection since.