Learn a basic 10 card counting system for BJ, it's very simple (unlike core card systems), and will give you an advantage over the house, allowing you to modify the "standard" rules most exprienced non-counters play by. There are several excellent books out on the subject, and you don't need to be a photo-reader to pick it up.
Armed with this, you can have some success, without it, play standard rules BJ, enjoy losing your 5-10%, and go forth with Creamo's advice and gamble very little, if at all.
Before any of you discount card counting as something "impossible" since you saw Rain Man, I'll inform you that the local casino here at the Calgary Stampede was 750,000$ in the hole the 2nd day it was open after all the pro gamblers decended on the Blackjack tournament. Day 3 they shut down most of the tables and brought in some pro dealers. The fun was over on day 4. Point being, most dealers in Vegas are very, very good and if you see them manually shuffling, odds are they are building the deck to kick your ass. Again, stick to the low limit tables like others advised and have some fun.