Two at once (switching from one to the other when I get a bit bored):
*Just noticed that you've read this as well, C3PS. I'm a little more than halfway through, and enjoying it immensely.
*This one's dragging a bit, at least compared to A Game of Thrones, which is why (unlike a friend of mine who started the series at the same time I did) I haven't plowed through all 4,000-odd pages of the series just yet.