DrZombie: A few things I think you missed. Firstly Adamantine Body replaces the +2 armor bonus Warforged get with a +8 one (it doesn't stack), and also gives you DR 2/Adamantine. Second, when enlarged you take a -1 penalty on attacks and AC (size penalty) which cancels out the strength bonus to attack. Thirdly, you can use your bite and slam as secondary attacks (which I forgot too, actually), meaning if you full attack you can also Bite/Slam at -5, but you can never get iterative attacks with the bite (natural weapons never get iterative attacks).