I just wanted to bring to your attention the...Buddhist Cultural Centre's Bookshophttp://www.buddhistcc.net/bookshop/
I found this link originally on the Links page of Access To Insight.
I ordered a stack of books from them recently, and found their prices to be really good (even if the postage rates are only so so).
They also have a very diverse and extensive range of books, many I'd never even heard of before. Just be careful when ordering to ensure that you order the books with the EN (English) label... unless you enjoy reading Sinhalese of course.
The prices are in $US, so if your local currency is faring well in comparison to the $US, it might be a good time to invest in some Dhamma Books!
Feel free also to share links to other good sources of Dhamma Books!
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)