Controlling home lights with wireless transceiver

so thought of cool project myself work on.

i want able turn on , off many lights in home wirelessly single hand held device.

i have researched methods , have found there 2 ways know
to control wirelessly , that's ir , rf. i've heard of xbee feel project.
i have found neat wireless transceiver that's pretty cheap. https://www.sparkfun.com/products/9582

now here's little lost. have put transceivers inside of light switches.
there's 7 lights i'd control. have 1 transceiver in hand held "remote" that
communicates each of light switch transceivers individually don't mix each other
and turn on @ same time.

i guess i'm asking is:

• is there way have parent transceiver talk children transceivers , sort of pair 1 until
  it matches id of sort , upon matching light turns on or off?


• is there better way whole project?


• i fit parent transceiver inside small container i'm trying keep part small.


• am going have transceiver connected arduino @ times or can go without using on?

hopefully can guidance. thanks.

there have been lot of discussions on rfm12 on forum, in the
networking section. also, check playground. there small boards
with arduino , rfm12, jeenode, might want at
lowpower labs rfm12 library. also, rfm12s have 40m range at
433 mhz, whereas other low power devices nrf2401 , xbees that
operate @ 2.4 ghz have 10m range.

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