Let me start by saying I am NOT a s/w guy...but:
I think that's going to be a bit much for a 10g tank (by that I mean overstocked)...in fact, I don't think i'd start up a s/w tank with anything less than 30gal.
Clowns seem to be going for ~$15 each in my area, hermit crabs are cheap, and shrimp (depending on type) are fairly inexpensive.
Corals are going to require a lot of light (a regular/generic flourescent hood won't be enough).
I'd suggest you check your local shops for good books, and put your google-fu to the test...there's a TON of info out there.
I've dipped into it a little, as my fiancee REALLY wants a clown-fish (wouldn't it make a good suprise for her B-day?

) but neither of use are really ready for the commitment/cost of setting up a s/w tank.