I'm running out of time to buy a GPS and still get the maps in before my mid-September hunt. I'm looking for a GPS that will load fast, and be user friendly. I'm planning on using this unit to hunt public land in multiple states over the next couple years. Therefore, I would like the unit to be SD card compatible so I can buy some cards of the public / private overlays from the links through this website. I was looking at the Rino units, but my buddy has talked me out of those due to the limited range of the unit to unit location communication feature & the limited radio range. We would like to be able to see where each other is at for more than just a mile or two. Bottom line I guess, what is the most affordable unit I should go with so I still have money for extra batteries, charger, maps and other accessories (which accessories should I focus on?). Thanks!