The most recent one I have used is similar to this one:
http://www.dewalt.com/us/products/to...productID=6058
I really liked this one because it combines the miter saw with the concept of the radial arm saw which is really handy for cutting wood that is larger than 2x4's. There is a smaller version of this saw available, which I have also used, however I prefered the larger one for what I was cutting. It is also useful when cutting sharper angles in 2x4's as has the ability to make the longer cuts when cutting such an angle.
Eric