Yes, I agree, which is why I said it will be enough to tide us over until something more about them is released. I think right handed magik, darklord specific magik, and MAYBE some things for cener druids will be in darklords.
As for using the adept, I again agree that the elder arts especially will be unsutiable, except perhaps a vile and mutated version of alchemy. Thus, multiclass them into experts after around 4th level adept, and use the extra skill points for alchemy and survival.
Keep in mind, you can change the thematics for the net spell. For instance, you could use the stats for the net spell, yet tell your players that as the evil druid casts his spell, vines start wrapping themselves around them, etc etc, instead of a net appearing as per the standard spell.
Whatever the case, its important that the druids are very low on actual spellcasting, and that their magik has a very different feel.
Remember, there is a reason the cenerese used a plague to wipe out many of the elder magii; had they used magik, they would not have stood a chance since the elder magii are second only to the shianti in terms of magikal power ( I personally think they were students of the shianti given the blurbs we have in the rulebook, but hey). Thus, it took a relatively non/low magikal weapon to do them in, something for which they were not prepared.
Thanks for the kind words golem