Having nosied on down to Neil Gaiman's American Gods blog (as recommended on Jon P's site), I managed to pick up a copy over the weekend (it's not supposed to be out yet, but it was on display in the local bookshop anyway), and have so far found it pretty entertaining (although I'm not in any position to comment on the whole book as I haven't finished it yet!). It's very Gaiman though, so if you like his work you'll probably like this. Check out the (badly OCR'd) chapter here for a taste of the book.