Here are some special ThinkPad models, useful gadgets and hardware mods listed on this page.
The ThinkPad with the iconic butterfly keyboard
HDD caddies for your ThinkPad
You just plug them into your slot where the optical disk drive is and plug in a secondary hard disk for more storage. Good if you want to go with a SSD/HDD combo for your mobile battlestation.
"Pizza" docking station
This docking station isn't just for plugging it into the big screen, it can also charge your ThinkPad.
Easily changable hard drives
You just unscrew the hard drive bay, plug in a new drive and screw everything back together. That's it. No special tools or soldering needed.