Well, sitting at a waterhole is the "easiest" way to do it, but if you prefer to spot and stock I will give you a couple of pointers that I picked up while hunting antelope with my bow.
1. They are very fast
2. They have very good sight
3. They rely more on sight than smell
What I did when I was hunting them was to find a buck and watch him until he walked out of sight, then I went to the last place I saw him. Most of the time if they didn't see you coming you could walk right up on them (until they see you). If you can find a place where they are feeding near some cedars or a wash you have it made. I snuck up on a group of small bucks using 1 large tree with the wind right at my back. They could smell me the whole time, but they didn't run until they actually saw me.
Good luck,
Rut