I read The Stars My Destination last year and liked it, but I just had to read online again to remind myself of the plot as I had completely forgotten it! I've also read The Demolished Man, which was also good.
I've just finished The Glass Bead Game by Herman Hesse. Not read anything by him, and half thought it might be a bit sci fi, as it was set in the 23rd century, but it wasn't really. It was a bit of a slow read to get through, and I can't say that I loved it, but it was still interesting.
Now reading a short Mario Vargas Llosa novel.