I've redone the warden with the idea of using spell like abilities in place of actual spells. This breaks the PG creation rules but I think it would be interesting to play.
http://micahblackburn.wordpress.com/2012/08/10/house-rules-classeswarden...sneakers
Forgot to reply here: I really like the warden. I may steal some of those custom powers for the war wizard :-).
Thanks! Steal away! I built all those powers (especially the ones that are self only buffs) that are not existing spells so they should be legit.