What type of scanner do I really need? I just ordered a Bearcat BCT8. I was debating over this one and the BC340CRS (100 Channels). I am new to Scanners, enjoy listening to them Alot. I know the BCT8 has trunking but I dont even know what that it is. Starting to think that I probably could have saved the extra $100 bucks by just getting the BC340CRS base scanner. Any Suggestions?