You should have a look at Speed Trap (www.speed-trap.com) this package uses a unique tag which once inserted into the pages of your site never needs to change regardless of what information you want to collect from your site. So depolyment is easy and tag maintenance is almost non existent. All the configuration is controlled from the data collection end. This together with a dashboard that works on a star schemer this gives an enormously powerful tool to allow you to answer any business question you have about your site. The key is, from Speed Trap's point of view, that is it all about customer experience and enhancing that to improve conversion to your goals whatever they maybe. If you want to know more give me a shout :-)