As opposed to the innards of... I'm drawing a blank here. What computer is significantly more friendly to non-nerds to replace the hard drive? You will still need to know about cables, and what to touch, and how to mount rails on it. Apart from the USB drives, which non-nerds know about and can use easily. Maybe one in a tray where it's just sliding. But then they're still handling a bare drive, and good luck getting one of those in an imac form factor.

The glass front is held on by magnets, and comes off with a little help. It's an elegant solution to attaching a glass panel flush to the front of a computer. It's easily removed and easily replaced.

My laptop is a single screw (Thinkpad). 2 Screws to Add RAM (well for one slot anyway).

Or there's a HD Caddy that I can swap out for my CD Drive by flcking a little switch.

Agreed that you definitely need a willingness to get hands dirty and risk destroying the computer. I've had a very smooth time replacing hard drives on a unibody Macbook Pro and Macbook.

Thanks for the clarification about the glass panel. I was thinking it was sealed a la iPad. Definitely sounds more elegant than me trying to take apart my old Fujitsu laptop.