Before one makes a statement that it's illegal to feed supplements in WI, please read the regs. (pg 40) For most of WI it is legal with certain restrictions.

i just mainly want to know what types of minerals i need to buy and about how much they will cost me.

If you want bigger racks then mineral supplements ain't gonna cut it! Do as someone else suggested and plant some food plots and let the small bucks walk. Age and nutrition are the only ways to get bigger racks.

Childers, I also hunt in georgia. probably the best thing that you can do down here is plant iron clay peas in the summer months and you should be able to keep them growing through the summer and into archery season. as far as minerals and supplements anything will work. bass pro shops in atlanta should sell 40lb bags of protein. you can also look into cottonseed as a supplemantal feed here in the south. It has an extremely high fat content and is also very good to feed especially throughout the winter months and into spring when deer need it the most. it is very cost effective as many people farm cotton in georgia. a simple trough feeder will do.