Just don't tell them how near completion it is otherwise they might make you finish it before you leave (Depending on how long 5% of the project takes that is). Either that or they'll get you to handover/train someone how to do it in your absence.
I emailed myself a copy of the files I was working on...It's really basic cost-analysis type stuff...but currently they have no way of verifying whether certain invoices are correct or not. I sort of took it upon myself to fix this.
Basically, I try to save the company my wages every year, so that they're justified in hiring me. This particular project would have saved the company 2x my wages. I've deleted them from the work computer and only have them at home...no one will be able to pick up where I left off. I'm sure someone will start fresh doing what I've done, but not with my work they won't...
The only frightening thing is that I have no qualifications to speak of...I dropped out of high school / Uni, and worked my way up. This company looked past that, and now that I have experience, hopefully it won't be a problem. The Director of Operations has given me a reference, as well as the Supply Chain Manager, Production Manager, Production-Planning Manager, and Director of Finance. Because we're the second largest company in the UK in this industry, hopefully that'll be enough to make other prospective companies look past the fact that I made poor choices in my late teens, early twenties, and hire me.
Also - I just wanted to say (and this may be the beers talking, or the fact that I finally got my Charger in WOW) thanks for the support guys. OCUK ROCK!