Earlier this season I was using a cheap broadhead 100 grain with 1 1/4 inch cut. Now after having missed three deer this year, my buddy suggested what he was using so I invested in some Horton FX broadheads 100 grain and 7/8 inch cut. I love em they're the best fixed broadhead I have ever shot, the really do shoot just like a field point. They closely resemble a muzzy, but they're tougher! There's a great deal on them on Ebay right now.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=001&sspagename=S TRK%3AMEWA%3AIT&viewitem=&item=11001758439 3&rd=1&rd=1