I totally agree with you I really can't afford to spend out on books if I want my fabric etc; for my quilting addiction so your link looks really good but unfortunately they don't ship internationally.
For those who don't' live in the USA and those who do this site is a really good spot to find super bargains on books:
http://www.abebooks.com/ scan to the bottom of the page and you will see that they cover a whole load of countries including here in the UK, Canada, Australia etc.