Here are the 3 best publicly available Projection systems:
Marcel Projections courtesy of Tom Tango: tangotiger.net
Spreadsheet Download: Marcel Player Forecasts 2012
ZiPS Projections courtesy of Dan Szymborski: Baseball Think Factory
Spreadsheet Download: 2012 ZiPS
Steamer Projections courtesy of: steamerprojections.com
Spreadsheet Download: 2012 Steamer Projections
You can read more about the various projection systems over at fangraphs. Please remember that none of them are perfect because baseball is unpredictable. But that's what makes it so great. If we all knew what was going to happen before the season, there wouldn't be a reason for us to watch.