o6, that way, you will have some cash left over to change bits that break or you dont like ie instead of a two ring setup up front a single ring and chain guide.
Those bikes are identical. By that I mean the Truvativ stuff and the FSA components that Kona is using is very comparable. You can either save the ~150 Pounds by getting the 2006 or you can spend it and get the 2007. Just think of it this way that when you sell it down the road, you will get one year less depreciation if you buy the 2007 over the 2006. If you get the 2006, make sure that the rockers were replaced as those snapped in 2006 but Kona fixed that issue in 2007 and offered FREE replacement rocker arms to people who wanted them for their 2006 Stinky/stab line up. They were all recalled by Kona so you have nothing to lose if you get the 2006!
I just sold my 06 Stinky, its like a pogo stick! So if you like something that sticks I would look at the 07 or 08, the geo changed, just a bit to make a difference.