I am looking at buying either a Cobra XRS 9780, Beltronics RX55 Pro, Beltronics Vector 995, or a Whistler Pro 73. As far as I can understand either the BEL RX55 or the BEL Vector 995 would be the best two. But I would like some more opinions. Any help would be greatly appreciated. Note: I know there are better out there but I can get any one of these for $200 or less and that is my budget.