FYI, As far as I know.
"Sushi" more properly (sorry Designdawg) refers to the type of rice that
is served with the meal. It is supposed to be a semisweet tender rice,
that is quite good by itself, and is also the most filling part of the dish.
"Sashimi" refers to specially prepared cuts of fish, usually the better parts
of the filet.
Most people think of sushi as the raw fish, because it is more common to see
it served with fish of some type.
Sushi can be served without fish, or without raw fish, if one so choses.
A couple of the popular "not raw fish" types include vegatable roll
(cucumber, celery and carrots), Hamago (Fried Egg), and sometimes
California Roll (CA Roll can also have crab meat inside).
There are also (probably) variants on California roll for each state/region
that sushi becomes popular in.
If you want to try out sushi, but don't want to get into the raw fish part,
you can try the above types in relative safety.
There are many different ways to prepare sushi, and as many different ingredients
as there are things that go with rice. Which makes sushi range from fast
food in some places, to gourmet cuisine in others.
BTW: This thread should really have been poll-ified.