Another option... Have you thought about spraying your existing doorcards? I did mine this weekend with vinyl spray and they came out well
That had never crossed my mind...it sounds a good, easy way to get the desired effect. Would you be able to post some pics of your work? Thanks.
Sorry chap, I can't get my phone to transfer it across

This is what i used though: http://www.amazon.co...k/dp/B001W03PQS
The outcome will only be as good as your doorcards are really, mine were reasonable but i just wanted to change the colour. One can will get you pretty far... I'd go with two though if you're doing 2-3 coats. Mine are a little patchy right now, but after another coat they should come up even better!
Matt