Well Jackjr,
Where are you from and what kind of hunting are you used to. Whitey's, Blacktail's on the coast, ?? The nice thing about Idaho is it has quite a variety of terrains and each are different. We have high country mule deer at 9 to 10k elevation, where you find very few animals, but they can grow large even in Gen Units. We have sage country, but the deer don't usually get there in numbers until we have enough weather, which can suck if you are from another state and aren't sure when to come. Lastly, we have the No Idaho Whitetails which, while I have not hunted them, I hear for a quality hunt with a good opportunity to score is probably the best bet in the state. Another benefit of the Whitey is I hear they eat much better than the Mule deer.
I would plan on having the first years here be rough, but it will get better with age. Frankly, if you're not willing to put in a few years learning to hunt here you don't deserve to hunt here.
If you give us some background and preferences we can point you in some general area's(units) and then it's up to you.