I swear I posted on this thread before? Lovecraft is one of my top three favorite authors, too. The others being Tolkien and Stephen King. I was introduced to him by an English teacher in high school. He had us read "The Festival", and then a story called "The Mangler" by Stephen King. Afterwards he asked by show of hands how many people liked which story better. Everyone in class raised their hands for the Stephen King story, I was the only one who raised my hand for the Lovecraft story. My teacher explained the Cthulhu mythos to the class and it just sounded so cool and so much creepier than anything I'd ever read. I've been a fan ever since. I own the Complete Fiction, and most movies. There haven't been a lot of good Lovecraft movies, unfortunately. The best are Color Out of Space, Dagon, Reanimator, Whisperer in Darkness, and In the Mouth of Madness.
Just a heads up there are two new movies coming out: The Thing On the Doorstep by the team behind Reanimator, and the H.P. Lovecraft Historical Society has a kickstarter for another movie, Pickman's Model.