I second grow a pair's recommendation for Just Anchor and Hope. :3 I think that's my favorite this far that I've ever read. I mostly read Harry stories as well, and at the moment I'm hooked on Water and a Star. She updates pretty frequently and I think she's tied for first place with the aforementioned story :D There's a couple more I can think of that are worth taking a peek at: Love Notes & Going Nowhere
And then this girl has the best Harry stories (as you can tell I'm a sucker for Harry stories) - here. She updates frequently and her ideas are amazing.