Thread: What do I read first?
Oh, and howdy, welcome and enjoy your stay. The more the merrier. See ya 'round the boards.
If you have previously read LotR and remember the story, then you may as well start at the beginning with The Silmarillion, then The Hobbit, LotR, and Unfinished Tales. If You want to continue after that, I'd read The Lost Tales Parts 1 and 2, but I'd skip The Lays of Beleriand unless you love poetry. From there I'll let Valedhelgwath point you to which ones to read next and which ones to skip, for even I haven't read them. I do own the first five of the twelve volume HOME series, but became unenamored with them.
I would also recommend you get The Letters of JRR Tolkien Edited by Humphrey Carpenter with the assistance of Christopher Tolkien, ISBN 0-618-05699-8. This is a collection of the Professor's letters that clarify his thinking about many of the peoples, places, items, languages, etc in his books. There are additional explanatory notes for many of the letters and my copy has almost 50 pages of an expanded index making it very useful.