I've recently finished reading Dune and Second Foundation and finished watching Heroes season 2. Spoilers behind cuts.

Dune - Overall brilliant. It's been compared to Middle-Earth and I can see why - the world feels incredibly complete, which is very rare and hard to achieve. The plot is excellent and will draw you in. The book actually felt much more like a fantasy than science fiction, what with the feudalism and prophecies. Definitely one to read if you haven't before. My only gripe was that the characters were too easily divided into good and evil, but if you can manage LotR that's hardly going to bother you.

Second Foundation - This book concluded the Foundation trilogy, of which I really enjoyed the second but wasn't too thrilled with the first. I found this book, like the first, wasn't that great - the plot is slow and sometimes the characters do odd things... But it's almost worth reading it for the twists at the conclusion!

Heroes Season 2 - Disappointing after the fantastic first series. The plot lacked focus and didn't seem to go anywhere for ages, and then suddenly concluded swiftly and unsatisfactorily. Also, most annoying of all, lots of the characters suddenly developed Lack of Analysis Syndrome, or simply put, Stupid Syndrome.
( More thoughts with spoilers )