Real Time Sports Stats Software

We are looking to create a custom software to track sporting event schedules, scores, odds-spreads, and general event information. A lite version will be available online, a full version will be a standalone app the user will need to install on their machine. This software will not accept bids, just provide information. 100% legit. We are curious what is involved with developing such application. We assume there is a datasource (free or access fees) that we can integrate to provide this info, though we are not sure. Obiously, we need to further spec this out. However, in your response, we'd like to hear how you'd approach this project. We are looking for serious developers with experience working with live data feeds! In terms of scope, Please take a look at [login to view URL] ... The app is called dbs2k. This is essentially what we want to build with some additions. Please give me a formal proposal. State any live feed experience