My brother-in-law always buys me a couple of books for xmas - currently reading one of those: Legend by David Gemmell - thought, "Ho-Hum fantasy nonsense", but I'm actually finding it very enjoyable in a "switch your brain-off and enjoy the axe-battle" kind of way.
His other book was "Peace and War" by Joe Haldeman: a compilation of "The Forever War", "Forever Free" and "Forever Peace". "The Forever War", written in the 70's (sort of a sci-fi version of the author's experiences in Vietnam) is an absolute classic, and I can't believe that I hadn't heard of it before. What annoys me though, is why to they get cover-art illustrators who haven't read the book. The cover is very nice, but it shows a gun and a space-helmet. The soldiers in the book use neither guns nor space-helmets

These books aren't particularly high-brow compared to what most of you seem to be reading at the moment, but I do read more heavy-weight stuff too, honest!
RJMcB