[Worldwalker]

You should also check out the world of DRM-free ebooks. Not every author or publisher thinks their readers are their blood enemies. I buy from Baen (Webscriptions), BookView Cafe, and just recently BeWrite. There are more good books in the world than I could read in ten lifetimes (and as fast as I read them, they keep writing more!), so for every book that I choose not to buy in order to avoid voting in favor of DRM with my wallet, there are at least two more I can read instead. This has also helped expand my reading horizons (I didn't realize how badly I'd become stuck in "safe" genres/authors/publishers, and how many treasures I was missing). And, of course, I don't have to worry about all my books locking their covers shut forever. After all, I bought an ebook reader to make my life easier, not harder.

I disagree that Calibre is overkill for just one computer and one device. Being able to put your books into collections without having to drag them around, using Calibre's tags and metadata, etc., is a huge thing. If you're just buying DRM-locked books from the Sony bookstore once a month or so, true, you can get by with the Sony software. But if that's all you're going to do, pbooks are probably a better deal. I've done it both ways, and managing 2500 books with Calibre is less hassle than managing 25 books with the Sony software (admittedly, last year's version). As always, of course, your mileage may vary.