Well if you wan`t a Nitro MT (monster truck) Kit, I`d say the HPI Savage XSS, it`s a super sweet truck and you get to build the hole thing from scratch, and is the like best MT you can get!
I should get mine tomorrow!

I`ll be posting pics and a vid of the build and stuff on "HPI Savage XSS" thread when I get it, so hopefully that`ll help you choose.

Here`s a link with the lowest price and where I`m getting mine:
http://www.towerhobbies.com/products/hpi/hpic1861.html