Playing winning blackjack by card counting is incredibly hard work, much harder than playing winning poker. Don't get the idea that just because you heard somebody win big, then it must be easy game. Purely +EV oppurtunities are not plentiful and being back-off by the pit is common if you're caught counting, and also you'll need a huge bankroll.
There are many authoritative blackjack books out there, perhaps you're would like to give them a look. Also, there is a forum/website that may be worth taking a look,
http://www.bj21.com, they hav a free forum there.