It all depends on how you play physically, i suppose. I use the keyboard in conjunction with the keyboard, using the keyboard to type and move but the mouse to look, cast, and use hotkeys. Some people use the keyboard for just about everything so might want to hotkey certain spells to make them easier to cast. Druids really dont have much in the way of "must-have macros".
If you group tend to group alot, you might want a macro telling the group when you're healing so the tanks know the status, but keep it simple and easy to read, pointing out who is the target of the heal. Also if grouping you'll probably want a /assist hotkey, hitting the add can give a druid aggro problems. It can also be used to assist mobs so you know which melee to heal... particulatly effective in raids when you cant see everyone's life.
For the most part, you dont need too many hotkeys unless you'd like to hotkey spells. If you dont have a UI that already does so, I'd use the hotkey space to link bags in my inventory for easy access. My choice:
(1) Primary slot (2) Secondary slot
(3) Inventory slot 5 (4) Inventory slot 6
(5) Inventory slot 7 (6) Inventory slot 8
(7) Melee Attack (8) Heal Macro
(9) Assist (10) Forage
Originally used this set-up with my bard for fast PRI/SEC switching but got used to the fast inventory access of linking the bottom 4 slots. I always have a melee attack hotkey, even as a druid. And I'd link the forage button to click everytime you turn left/right... auto-forage.
Just my 2 cents.
Edited, Thu Nov 11 21:14:36 2004 by RattailScoundral