Quote from Sarabian:
I'd love to see iMac guides and eMac guides, but see no real reason for a guide on the towers. Those are self explanatory. If you have the skills to make use of the self-help guides, you can do the towers sans guide easily.
We've historically felt the same way-- installing a hard drive in an iMac is a LOT harder than in a Mac Pro. That said, we are very open to suggestions and feedback. We're watching this thread, so keep up the suggestions!