Reggie,
I've got the DeWalt and I'm very happy with it. I had an early model Porter Cable but the fence and adjustment process was not very accurate. The DeWalt has a really good fence system and is fully adjustable.
As for tenon joinery, the new Fesstool is super but way out of my price range. I think one of the woodworking mags did a recent test of joint strength and the the floating tenon came out pretty high.
Good luck.
Dan C.