Dungeon Master:
I really can't picture a warforged being anything but a warrior.
I forget if Races of Eberron is a 3.0 or 3.5 rule book. This is on page 23:
Races of Eberron:
Druid: The rare warforged druid can be a formidable character. The
Adamantine Body and Mithral Body feats negate your druid capabilities, so consider
Ironwood body as an option. The wild shape ability and the goodberry spell both
allow you to regain lost hit points without halving the benefit of healing magic,
and you retain your armor bonus as well as all of your immunities when in animal
form.
Just food for thought.