Ryujin
Legend
Try to re-make _Dune_ as a mini-series. It's too big to fit in a movie, as has been demonstrated twice.
I'd like to see something from Niven's _Known Space_ series. Gil the Arm seems the best prospect, figuring you won't have to re-introduce 500 years of future history so the audience can 'get it' when technology happens. Beowulf Schaffer is Plan B. One story per planet in the solar system might work, too. (Although ... I personally want to become a human protector when I grow up.)
Star Wars novels: the Thrawn trilogy.
Candidate for the "Nobody actually makes season-long TV shows any more" award: Azimov's _Foundation_ series (all of them, although imo the first novels were the best).
Have you seen the "Dune" miniseries from 2000? It was made in three parts, for SciFi (when they were still known as that), and was pretty well done. It's available on Amazon, on DVD. Definitely better than the 1984 movie, from where I sit.
http://www.amazon.com/Dune-Special-Edition-Directors-Cut/dp/B0000639EV