Blackjack variation flash game

I have created a variation of a blackjack game that I would like to make into a flash game to be played online. It involves more cards than the usual blackjack game, similar to but unlike some of the blackjack/poker hybrid games I have seen. I would also like to be able to sell merchandise in the surrounding margin areas (payment via paypal) and perhaps even have Google Adsense there. One question I have is do you use a random number generator to generate random draws of the cards? It is important to me that the site have a true casino site feel to it (although it won't be a true gambling site as no acutal $ will change hands- it will be a U.S based site so can't do the gambling part). In addition to the "table and card" graphics I would also like to include some background shots showing a beachy area (graphics of sand/sea/palm trees OK) Thanks