You still need natural spell for spells with material or somatic components. Note that natural spell just says "spells"
Some other thoughts: Apply the LA on your druid side, because you don't really need the extra 2 HD of wildshape that much. 2 more hit dice won't get you very far, unless you're using dragon forms, but even then, I'd actually prefer the extra 2 wizard levels.
As for the wizard side... Spontaneous divination would be nice, and consider banning evocation.