I've just put up some new LEGO Harry Potter minifigures and minifig parts up on my BrickLink store. Highlights include Arthur, Molly, and Ginny Weasley and Dobby. Some school sweaters from Gryffindor and Slytherin as well.
While you are there I still have a few Series 2 Collectible Minifigures listed at $2.99 each. If there are a couple of 'holes' still left in your collection, this might be your opportunity. All accessories and stands are included (but not sealed in package).
Shipping is flat rate, so buy all you want 'cause the shipping costs won't go up*.
*Different rates for international versus domestic shipping. See 'store terms' tab for details.