We've done this in the past. In fact, I still have to mail Suzie76's book back to her.
Diary of a Fat Housewife was a good book, but she was soooooo disciplined & freaky about her eating, it made me wonder what kind of habits she'd be passing onto her children.
Good in Bed I lent out as well, best book ever; wonder if they've done the casting for the HBO TV Series they're supposed to be making out of it? It's fiction, but sooo good.
So yeah, I'd be all for a book swap. I promise not to take 6 months to get your book back to you either. *hangs head in shame*