Stopped by Lowes last evening. Picked up this little "man toy". 12" blade 16 inch cut at 90 degrees, 3800 RPM, 15 A motor.

Played around with it some. It cuts so square and straight and sweet. I can hardly wait for a dry spell to set it up outside and start the new staircase. Found that my floor joist angle last night (rather than just get close which is still better than the original staircase) and laid out a single rise and run on a short piece of scrap 2x10. Set the miter saw at 51degrees. Made the back cut, cut out the step. Dry fot off to one side and the torpedo level showed dead nuts. BOING! This is as fun as making a 10 second pass...........well almost. I ran a shop vac to teh dust collector rather than use the bag and still made some fine sawdust, so I need to use this baby outside. It's finish cut is glass, but it sure makes the fine sawdust.