I use a Benjamin's Best oval skew (http://www.pennstateind.com/store/lx030.html) and love it (I only use skews and parting/tennoning tools (http://www.pennstateind.com/store/lcten.html) for my pen turning). I used to use a rectangular skew, and switching to the oval skew made a big difference. I started with the skew because I had heard that it can be the hardest tool to master, and I figured since I didn't know anything anyway, I may as well start with that one! I didn't find it to be too difficult to learn. If you decide to go the skew route, check out Alan Lacer's skew videos, too - they are very informative.