I was wanting to extend the range of my Dlink DI-614+ Router. I was looking on Ebay and they sell 5.5db 2.4ghz high gain omni directional antennas for $15 that is suppose to just plug right into the router. Is this overkill to extend the range of my router? here is the link for it http://cgi.ebay.com/ws/eBayISAPI.dll...category=40992