Gambling and games

Hi. I/we wish to develope two sites initially. One for bingo, and shortly thereafter we would like a casino. We have a name/s and made a start on wordpress but we need some expierance in the mix to get it right.
We need immediate action and to please bear in mind that somehow, we can work together a little and that I learn how it works. I need to be able to make changes on an ongoing basis. as merchants do likewise . If we are happy with the work we have a few other projects in mind for later I would like to try stick with wordpress if possible but also open to discussion. In tandem to our sites developments, some knowledge on SEO or marketing would be an advantage. I did select category on web programming but this is a mix of design, some graphics maybe, programming, whats needed to develope a site.