Kindle for the PC

Uh oh! As a newly-retired librarian trying to adjust to a seriously reduced annual income, I have been resisting toys - including e-book readers - but not there's a beta version of the Kindle reader that could run on a PC - perhaps even on my old, creaky HP tablet PC? This could be trouble(!) I'll do my best to resist and slog it out with print books from bricks n mortar libraries. See Kindle for PC