toeie has a pretty great response there, i just wanted to add my tiny $0.02.

never start atkins on a monday! never, never, never!

I STRONGLY recommend starting atkins on friday night, or saturday morning (depending on if you are planning a big carb blowout before you start). that way, by the time monday rolls around, with the dreaded oh-mi-god-i-have-to-go-to-work and the inevitable carb-laden goodies you have two clean days under your belt and you're half-way to ketosis already.

also, if you start it on the weekend, you can be a grouchy slug to your family as you go through carb-withdrawl, rather than having to make nicey-nice at work.

Anyways, good luck! you sound very determined!