"The Incredible Hulk" was an awesome movie.  I highly suggest seeing it.  It breaks away from the "first" movie and while the break isn't very clean, what with a new actor playing ol' brucey boy (Edward Norton), I love the direction it takes. 

Clean shots, clear dialogue, a plot that builds to a climax pleasantly, and enough explosions to shake a stick at.  With Norton in the role of Bruce Banner, your not waiting for him to get angry, but you don't mind when he does either.

Check it out, it fits well into the Marvel movie universe with of course S.H.I.E.L.D. interjected slightly into the plot.  

Slight Spoiler Warning!  (keep your eyes open for a specific S.H.I.E.L.D. agents name in the opening of the movie)  Spoiler over. 

 Like the first movie Stan Lee and Lou Ferrigno show up in the movie.  Also, according to the credits the voice of The Hulk is Ferrigno's. 

And to save you time, there are no little teaser tidbits after the credits, although there is something quite interesting just before them.