Online Ticketing

We recently did a survey of our email list subscribers and found that 80% of them were interested in having us sell tickets to our shows online. Being close to Silicon Valley, this makes sense that our audience and potential audience (especially our email list) is very tuned into doing things on the web. Now the harder part is figuring out an economical way to provide this capability. We host our web with Network Solutions and they have added a PayPal processing capability. But I have not found a way to limit the number of seats to a show. I have found through Google a whole bunch of internet based software packages that can be used for online ticketing. Many of them sound great. But they are clearly designed for either larger non-profits or profit making enterprises. These software vendors have to make a living too, I guess. So far the pricing has been prohibitive but we are waiting to hear back from a few suppliers who did no provide pricing on the web. If anyone has other suggestions on how to approach this issue, they are welcome.