Int, although I like your idea, that’s not the way they work.
I get at least one email a day about these scams, since I have written some warnings on it.
They don’t hack you bank account, but basically they all claim you’ve won a huge prize, but in order to receive it, you have to pay the ‘legal-costs’, ‘process-fees’, ‘translations fees’, or whatever they can come up with.
Problem is…. it works! I received one complaint from a guy that paid $9500.- (!!!) hoping to get 7.5 million in return… guess what: he never heard from the guys again.
Most of these scams operate from Nigeria. I have checked the companies mentioned in the emails and none of them are registered at the Dutch chamber of commerce.
There’s really not much you can do about these @ssholes.
although some really try:

If you have a couple of minutes, read this (very entertaining) story:
http://www.419eater.com/html/stev_ebe.htm
Jeff