How do you guys get your heads sharp?  I don't know about you, but I can't sharpen anything if if requires me to hold a steady angle.  I used to use a Lansky system for my knives until I found a large 4-rod Crock Stick (By Matco) system clearanced at Galyans when Dicks bought them out a few years ago.  The link is to one similar.

 http://cgi.ebay.com/CROCK-STICK-KNIFE-AND-SCISSOR-SHARPENER_W0QQitemZ300009175585QQihZ020QQcategoryZ116005QQtcZphotoQQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I can't imagine anything better for knives, short of an expensive EdgePro system, but broadheads often need more work than a knife and I like something quicker.  I found something last year that works great for me.  It is a Lil' Shaver.  http://www.3riversarchery.com/ListProduct.asp?offset=0

It works like a Lansky knife sharpener, but uses a file instead of stones.  The file is just glued on and can be easily replaced.  I glued a piece of leather to the back of the file holder, so I can quickly go from the file to a strop.

One tip I would offer with any sharpening system is to color the blade bevels with a black magic marker.  This will help you see if you have the angle correct and where more metal needs to be removed.