Hello, I would like to get back into scanning again. I used to listen to scanners years ago and it seems that a number of agencies in my area now use frequencies that I no longer can hear with my older equiptment (radio shack pro 2004). I am interested in purchasing a hand held scanner that is capable of hearing these frequencies (I believe they are trunked).I am looking for anything new or used, does anyone have any suggestions on what to purchase? and If possible, can someone tell me how much my Pro 2004 is worth?