I see a lot of people talking about it and have read more than a dozen posts.  People talk of setup and lower hash rates etc....

For the same cards:  say 7970 /  5990 / 6990 --- what kind of earnings could you bring in compared to BTC?

There are many btc calc (of varying worth) out there - but i haven't found one for lightcoin, or a hash rate list for cards either.

Please help inform someone worried about the coming hash glut with BTC.