Just be careful, I wouldn't use a racing saw to mill anything. The continuous load on a milling saw is higher than cross cutting. Remember milling is equivalent to planing end grain whereas cross cutting is like planing across the grain, noodling like planing a along the grain
If you just want to make a few cants then it depends what you are going to make them from.
If you are going to make them from small diameter logs then something like a mini mill should do the trick.
http://onlinestore.forestindustry.com/scripts/granbergint/G555B.html
If you are going to be making them from really big logs then you will need an alaskan - and the size of the mill depends on the size of the logs.
If you have plenty of cash, or metalwork skill and time, then I'd get both.