If you are looking for a miter saw, take a look at the Festool miter saw.  This bad boy has a lot of power and great features.  One of the nicest miter saws on the market today.
As we stated, there are a lot of features with this saw.  One feature to note is the rail forward design.  This design can produce a more accurate and cleaner cut.  The dual lasers also help make the cut more accurate.  The miter saws are not too heavy, weighing in at about 47lbs.  Festool also utilizes their fastfix system which makes changing a blade very fast and easy.  This saw also harnesses the power to trench.  So if you need to make a trench cut to go around obstacles, this saw makes this very easy to get done