More complex, complete examples that do several things at once

ausserirdischegesund:
I really would love to see a more complete example of a real use-case doing LCD (or some other form of) UI, serial and some other things at once. In principle I know how it should be done, but like with the simpler examples, seeing how others do it (and do it well, unlike my own first exeriments) would help me, I think.

Are there no examples of larger projects with complete sourcecode to be examined by newbies?

It is also interesting to me how people organize code, what conventions they invent, etc.

Have a look at my project, it is written in a state machine way and monitors the lid continuously while playing the game:-
http://www.thebox.myzen.co.uk/Hardware/Dice_Game.html