The best plants you can get will come from the people on this forum.
No LFS anywhere could offer you the variety, quality and convenience of all there is to offer in the way of plants and, often, hardware. That is not even mentioning the knowledge and help that is only a post away.
Every plant in my tanks, except for one Java fern, has come from forum members! I agree -- this is the best place to get beautiful, healthy, loved plants. It's still fun to check the local riverbanks and ponds for the occasional specimen, though!