Originally posted by Necrotaur
They can be if they're dualed or multiclassed as a fighter, otherwise they're stuck with 1 weapon proficiency slot and less-than-chain armor (if I remember right). Jaheira's an example of a fighter/druid.
But she is a poor second to the Avenger (awesome class) druid-wise because she is dualled. An Avenger is weak to start with, as druids often are, and it takes tactics and skill to play them successfully. But they do become formidable later in the game, without being over-uber
and they are a lot of fun to play.
btw, a straight druid can be dualled, but a Shapeshifter or an Avenger cannot, since that is a kit, and a kit cannot be dualled.
Druids are limited to scale male, but the red dragon scale, and a ring of protection can give your druid an AC of -9 (stats also affecting) come ToB (since this is where dragon scale achieves full magical capabilities). With ToB you cannot equip a ring/cloak of protection with dragon scale at the same time *unless* they were already equipped before you installed ToB. If you have SoA only, both of these can be legally worn, but once ToB gives the dragon scale its renewed capabilities, you lose the ability to wear both the scale and any other protection. If you have both equipped at the point you install ToB you will be fine, but only for the protagonist. The reason this is, is because when the protagonist dies, the game ends, so you do not have the option to resurrect and re-equip. With any other character who dies, once ToB is installed, you will not be able to re-equip these items together.
A final note, though you are limited to one proficiency slot re weaponry, it is not necessarily a major hindrance. Role play your druid, put proficiency points in dual wielding, and have them wield Bane and Scimitar +2 (Rashad's Talon?) and they will have eventually about three attacks a round. It has been a while, restarting now but with TDD, and she already has 4 attacks per round with a new blade thanks to TDD, and I am yet to enter Chapter 3)
