One of the most celebrated electronic devices of 2009, the Kindle from Amazon is a must have for the guy who is an avid reader. Why carry a bunch of books from the library, when the Kindle can hold up to 1,500 titles in its magazine-thick casing. Its got 3G wireless so you can order books, read blogs, and access wikipedia from practically anywhere.
You can read for a week without having to recharge the battery; much better than the old model that only lasted for 4 days. And if you get tired from "flipping the pages", you can have Kindle read you the book in clear audio. Available on Amazon for $259.