Check to see if your radio works at 462 -468 MHz. If it does then you are good to go, just need to program your radio with the FRS/GMRS frequencies. The list of those frequencies can be found here:
http://www.airsoftcanada.com/showthread.php?t=18513
If your radio will not run those freqs....
You can get a Puxing 888, new PTT and headset all from
www.technologydirectcanada.com
That is a GREAT site to deal with and they will get you set up properly.