Unfortuately, with casinos these days, to realisticly come out ahead, $500 is no where near enough to start with, if you can find a casino that has a $2 min bet i would consider that to be your best option with such a low banrkoll, keep your max bet a $10 and $5 average bet, that IMO would be the only way to minimize your risk.
lucky me, most joints here in AZ have a $10 min bet at all their tables. Which really leaves me open for disaster especially since i do not feel comfortable going in with more than $4-$500