Current (all started on 1 April):
The Eye of the Giant by Christopher Bulis (Doctor Who Past Doctor Adventure, with 2rd Doctor, Liz Shaw and UNIT) – about half way through
Swallows And Amazons by Arthur Ransome (was top of friends-list poll) – a quarter of the way through
Bring up the Bodies by Hilary Mantel (Christmas book, still working through the pile) – a quarter of the way through
Chicks Dig Comics ed. Lynne M. Thomas and Sigrid Ellis (Hugo nominee) – a bit over half way through

Last book finished:
The Lady and the Unicorn, by Tracy Chevalier

Next books:
After The Eye of the Giant, it will be Zamper by Gareth Roberts; after Chicks Dig Comics, I will start the Hugo novellas; after Bring Up The Bodies, I'll probably try Joe Abercrombie's The Blade ItselfSwallows and Amazons, Eric Flint's 1632.