How to print HQ vinyl self-adhesive stickers

I'm doing some research and was wondering if you can help :)

I'm trying to figure it out how to print (and obviously cut) vinyl stickers for cards with the size of a standard debit/credit card. I need the stickers to be durable (strongly adhesive to the plastic) and for the print/ink not to wear out easy; waterproof would be a nice feature as well.

I've read that one can achieve all the things above by using a good inkjet printer with Papilio Inkjet waterproof vinyl. Is it true? Moreover is there a similar solution for laser printers?

As for the cutting, what kind of equipment I would need to achieve nice round edges?

I have a small graphic design business, specializing in 3D CGI and video effects but it's not going very well :( Recently a friend of mine who's working for a huge company told me that he can get me a contract for printing stickers for the employees' security cards (photo of the person and some text), which are the size of a debit card. Unfortunately I have no experience with these things so any help will be much appreciated.

Thanks so much :) Galin