There are some US libraries that let out of area folks buy access. The Free Library of Philadelphia comes too mind, and they have a decent ebook selection.
http://www.freelibrary.org/registrat...pplication.pdf
Nothing says it's only open to US residents, but I guess you could ask.
The Kindle is now included in the Overdrive system which handles most of the ebook lending here, even without stripping and converting, so your choice of reader probably won't matter in regard to library access. It's not like certain ereaders only work at certain libraries or anything.