Frame stiffeners front, middle and rear made a big difference for me, and if you plan on daily driving it or even doing some decently hard trails I would highly recommend them
I was thinking about going with this one its only $200, but the 1" drop i have will work for now
http://www.ironrockoffroad.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IROR&Product_Code=IR-X_HNT&Category_Code=XDT