Dogtra or Tri tronics all the way. Like daleh said, no one else is even close!!!! We use our Dogtra 2000 collars every day, in and out of the water all day long. They have never let us down. For the money, the Dogtra 200 gold is the way to go. Not sure what the going price for the 200 gold is now, but you used to be able to find them for $175.00 shipped. So shop around!
If you have never CC a dog before, I would get Mike Lardy's E-Callar video. Not cheap, but well worth the price if you don't have someone (who knows what they are doing) to show you how it's done. Also, lets see some pics of your new hunting buddy. Can never go wrong with a lab, congrats on the new friend!