I will tell you how I am rigged for the morning with minnows. Water temp. at the river is upper 60's- low 70's. The bigger fish in the creek I am going to fishing are in 10 ft. of water hugging the bottom. My rig will consist of a 7'6" rod, with basic hook, sinker and a [I]slip bobber.[U] The slip bobber is important. Another rig you can use is putting the weight on the bottom and then one or two hooks at different depths on the line. This allows you to bounce bottom and "feel" what is down there. My problem with this rig is that tomm. it will be windy and I will not be able to keep the boat positioned near the structure w/o making a significant amount of noise with the trolling motor. This is why I am going to use the slip bobber rig. I can anchor away from the structure being quiet and also fish the correct depth.
There are a lot of different rigs you can use and what you have to do is tinker with all of them and understand the pros and cons of each so that when the time comes you can make a concise decision about which is best for you current situation.
Hope this helps.