ok, after giving some thought, here's what I've come up with:
the black shoes could work with your dress, but you just have to make sure it doesn't become the focus of your outfit, so you have to make sure there's enough black items on top to balance. Since you're about my height, this necklace wouldn't be too much for you. The ribbon at the end compliments the bow tie for the pair of shoes that you like. Double strands also adds a little more touch to your outfit than single strand:
Forever 21 necklace ($6.80):
http://www.forever21.com/product.asp...2695963&Page=6
The belt could be a little plain, since the necklace and shoes are fancy enough. You don't want to overpower it:
Forever 21 belt ($6.80):
http://www.forever21.com/product.asp...0033790&Page=1
You may have to go a little thinner than the 3.5" wide belt that they have. Then with a pair of simple stud earrings (or something that's not too long, roughly half an inch or an inch long, black earrings) a simple black beaded bracelet and a small black satin clutch will do the trick
And just see those pairs of pumps a good investment.
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Edit:
I found a pair even cheaper, $19.99
http://www.stevemadden.com/item_image.asp?id=12634#