Check out RadarBusters.com. Radar Roy has a pretty good site and he is a pleasure to deal with. I use the excort X-50 with the H.A.R.D. helmet display. I have found without the helmet display the radar unit alone doesn't work all that well. If you are riding hard in the twisties, or high speed on the interstate, the noise drowns out the sound and you aren't able to stare at the display. You will find that most of the time your detector will save you at close range, not long range, unless you live in flat country like Florida or Nebraska etc. Many times the radar is coming at you and it's over a hill or around corners etc. and you won't be able you pick up a signal until the man is close. If you don't catch the detector when it first lights up, you'll get nailed.
I've used several different radar setups over the years. Tried the ear piece in my helmet plugged into the detector, but that sucks. And, I found the little plug in on the detector wears out from plugging into it every time you get on and off your bike. Just the shear number of times wears it out.
I tried the escort Solo S-2 that runs on batteries. It's a cool unit but the black display is hard to see if you run the unit alone. It works exceptionally well but if you decide you want to use the H.A.R.D. system later on, you must buy the electrical cord as the H.A.R.D. unit won't work without it. One problem I have found with the H.A.R.D. unit is it's not water proof and if you get caught in a heavy rain shower, you have to tuck the little reciever inside your helmet to keep it dry.
I did use a laser jammer for a while but found it to be a pain in the arse mostly. You have to remember the laser beam is only 18 inches in diameter at 500 feet. They shoot at your headlight and if the beam does not hit your laser unit, it doesn't do you any good.
The best asset you can have to keep your record clean is a top notch traffic attorney. There is one here that wins more than 99% of all laser/radar tickets. $400 and you don't even have to go to court.
Whatever you do, don't run! You may get away but if you don't, life will get pretty miserable after you get out of jail.