Luckily, having a paysite will not cause you to increase and spend much bandwidth. However, if you are hosting your paysite on the same server that you are using for submitting galleries or running some other high capacity bandwidth projects, than you are basically digging your own grave. If you are really serious about getting into paysite bussines, than you might consider getting another dedicated server or simply just make sure you dont slow yourself down. Next step is to decide and do a design of your site. Now, before we start, there is a few things we should mention.
Some people go into paysite bussines by looking at the other already existing programs on the net.
If you go with this approach, than you must have a very good source of webmasters to back you up cause sending your own traffic to all the sites that you have can be very hard. And there is also another approach, where you could make a few websites, pretty much share the content, do the revsharer option and work on sending traffic on your own. Now lets get back to the design. Your site design needs to match your traffic that is coming to the site. For instance, you dont want to make an all flashy, really bad ass design if your traffic comes from tgps, link sites and pic posts.