If you are looking to take your Fallout 3 experience to the next level, then look no further than www.fallout3nexus.com. This community has over 1,000,000 members (between Fallout and Oblivion) and thousands of mods for Fallout 3. Their easy to use file management system will help you easily navigate from the simplest overpowered gun to the most complex game altering travel systems.
Each mod comes with a detailed description, ratings, comments and sample images. The great thing about this site is the power is in the community; some really fantastic mods (with regular updates) will keep you coming back over and over again. Even if you aren't into going completely god mode before you finish the game, there are some very simple mods that don't change gameplay, like updating some digitits. :)
Check out the www.fallout3nexus.com page on TruthGaming.com.
