Question about creating a web-site for a theatre...feedback as well

So this past month I have started a creative marketing firm and as a way to market myself I have thought about developing a website for the town's award winning high school theatre department totally free of charge. I've been trying to come up with a high profile site that would serve the community; but also make very visible my firm. (I hope this makes sense) Has anyone else done anything like this, does it work?

Second a feature i've been wanting to use, is giving people the ability to buy tickets online. But the 999 seat theatre has assigned seating, I have no idea how I would do this in terms of having people buy specific seats. I know places like ticketmaster does it, but I have no clue how, any thoughts?

You guys rock!