i was basically needing a cost effective way to connect wirelessly, I know XBEE Well and how to use it in any way but it's cost is a major deterrent factor that is making me avoid them ,the fact that i need one XBEE as a Main Controller and atleast one more as a router or end system coupled with the cost of ADAPTER + Breakout board .
but i have found these RF 433.9 Wireless Modules pretty Cost effective and sufficing my need for Through wall Wireless Connection.
http://tenettech.com/product.php?id_product=337 for the transmitter and i will get the receiver through the same place too.
Regards,
Nishant Sood