If all goes according to plan, my husband and myself will be buying a nice 55 acre property shortly. This is where we will retire in about five years although we will of course be spending long weeke...
The people I know that use them for there hunting dogs use the Garmin/Astro brand. There comments are don't go with cheap models because they have found they are being repaired quite a bit. Check out: http://www.gundogsupply.com/ - they will be more than happy to answer questions.