totally agree with Rob above re Rudy Rucker
Richard K Morgans
Altered Carbon is friggin awesome, if you haven't read this you should go get it today. You'll thank me. The followups are quite tasty as well.
Schismatrix is by BRUCE STERLING and it was a mindfuck in 1990 when I first read it...whores grafting genital tissue to the back of their throats so they can get off when giving head etc
John Shirley is a living master of scifi his new one
The Other End is supposed to be out this month and looks to be killer.
Silicon Embrace by him is one of the weirdest coolest novels.
I don't read as much scifi anymore, lately I've been into hardboiled mysteries,i.e., Charlie Huston, lee Child, Andrew Vacchss, Simon Kesnick...scifi has gotten too "literary" - more worried about "developing character" than ideas.