Alan Stern has a guest blog at the Planetary Society talking about all the planetary encounters and launches for 2010 and 2011. It will be an exciting couple of years. http://www.planetary.org/blog/article/00001946/
Wired magazine has an article on planetary rover concepts ( http://www.wired.com/wiredscience/2009/05/futurerovers/). You can also read about these at JPL's website ( http://www-robotics.jpl.nasa.gov/systems/index.cfm ).