I've narrowed down my choices to three mills. What I'm looking at is the Grizzly X3 and the Super X3 and the Top Tech mill. http://www.penntoolco.com/catalog/pr...ategoryID=4493 For the most part I guess the material I'm going to be running through is mostly aluminum , plastic, brass, and a little stainless steel. I'm also planning on CNCing the mill and I know you can convert the x3. Not sure on the super X3 if theX3 conversions will work on it or not. On the top tech haven't seen any CNC kits as of yet. Will the X3 work for me or should I spend a little extra and get the bigger motor?