The Buzzard's Roost often has sales on tracking collars. I bought a 4 collar set up a few years ago and he was very helpful in helping
me get everything set up and running. He was more help than the Garmin people. I also have been buying collars and leads from
Gun Dog Supply for 3 or 4 years with no problems what so ever.
http://www.thebuzzzardsroost.com/x2! The owner seem like a stand up guy. I had to talk to them one time about a "Supra Tuff" antenna problem. The money didnt go thru for my order. I called and the owner answered the phone, no receptionist, he sent the antennas anyway and let my bank sort it out.
Michael with hardcore hog dogs is a great guy also. When you call you talk to Michael... the owner. I called about leads and collars one time and we talked for 30mins about hunting.
Cant go wrong with either company!