For your dual, don't forget to make him Tru Neutral! I've known many people who made that mistake... no dualing for them [img]tongue.gif[/img]
I love the two druid idea though... I like druids to stick to summoning mostly, though that's just my personal bias. Do whatever you see fit
I wouldn't really take a F/M/C mostly because it, coupled with the other multiclasses, plus the F/M/T would really slow down your party for a time.
Good Hunting!