Another great source for recipes is allrecipes.com.
Whenever I'm looking to make something I've never made before I hunt down the best rated recipe or two in the category -- then figure out how to make it my own. Ya gotta expect that a recipe that 1500 people give four or more stars has gotta be a great place to start.
Like this cheesecake. I'd definitely do it again (even though, truth be told, cheesecake's not on my short list of favorite desserts).