Hello again pizzaguy! I've taken advantage of a couple of tips from you in the past and I thought I'd ask you about a new concern of mine. I've found out there's a tool that would be very useful to me for finding out about problems with my 2004 Crossfire Coupe before they bite me: the Diagnostics Tool DRB III! Unfortunately, said tool appears under a variety of forms/configurations and prices, from under $100.00 to well over several thousands o $$$.$$?!?!?! How can I decide which one to buy?