Some DP/SIDs can be rather complex and others very simple.
For example: The LaGuardia Nine (depending on which runway you use for takeoff) can involve lots of steps. Check out the Coney Climb if you get a chance.
http://204.108.4.16/d-tpp/0610/00289LAGUARDIA_C.PDF
On the other end of the spectrum there's some basic SIDs where you simply fly runway or assigned heading, maintain a certain altitude, and expect vectors on course.