I've run out of places to look so I hope you guys can help me with this. I would like to:

1. Securely login to my various websites 2. Securely lock and unlock my MacBook Pro.

Easy, right?

Except I'm quadriplegic. I use DragonDictate[1] to input text, and invoke keyboard shortcuts verbally, and SwitchXS[2] with a single button switch[3] (to move the mouse around and switch between applications etc). With these I have nearly total control over my laptop.

I use a password manager and once I've spoken the master password out loud the rest of my password challenges are automated. This is necessary, but not so secure as my laptop is then just open to anyone who picks it up. But I can't password lock my whole laptop because OS X requires that password before it will load up any applications, and I can't put a password in without my apps.

I was thinking of getting a YubiKey, but for that I would need to touch the sensor on the key to activate everything, but as you might imagine the whole quadriplegic thing gets in the way of this!

Some other sort of hardware master key, maybe? What do you guys think?

A word on the adversary: I want my personal information secure from casual passers-by who after having a quick peck on the keyboard would more than likely give up; I'm not looking for PRISM dodging security here :-)

Anyway, any help would be greatly appreciated!

[1]: http://www.nuance.co.uk/for-individuals/by-product/dragon-for-mac/dragon-dictate/index.htm [2]: http://www.assistiveware.com/product/switchxs [3]: http://www.ablenetinc.com/Assistive-Technology/Switches/Buddy-Button-and-Big-Buddy