My main reading interests are in science fiction and fantasy, science, computers, and investing; but I wander from those occasionally. These days I've been reading a lot of Tim Powers, James Blaylock, Iain Banks, John Brunner, and Stephen Baxter.
I stumbled onto Powers' with a copy of Last Call and have since read the rest of that trilogy and most of his others. I haven't yet found reading copies of On Stranger Tides or The Stress of Her Regard, though I did recently pickup one of the denim bound limited edition copies of the latter from Camelot Books. There are a couple of excellent sites on his work: The Works of Tim Powers and Stranger Tides. There's also a Yahoo group that Powers' participates in.
The Last Coin was the first of Blaylock's books that I remember reading. I've only read a few of his other so far: The Paper Grail, Lord Kelvin's Machine, and Winter Tides; but I have several stacked up to get too. Summaries of his books can be found here.
Matt turned me on to Iain Banks with a copy of The Player of Games. Since, I've read Excession and Against a Dark Background.
Brunner has long been a favorite of mine, since reading Stand on Zanzibar years and years ago.
Baxter's The Time Ships, a sequel to H. G. Wells' The Time Machine caught my eye. I've been through much of his work so far, including the Xeelee sequence. The Baxterium has some good information on his work.