I have a Nook... love it! When they were first introduced and not even shipping yet, I knew I had to have one. DH and I travel quite a bit and I'm a voracious reader. With all the relatively-new luggage weight limits for airplanes I can no longer pack as many books as I can read on a two week trip (especially if it's a cruise). Now I can download a slew of new titles and only have to carry the one device.

My best advice would be to do a little research to find out which screen you'll be able to tolerate reading on for a LONG period of time. I mean, keep in mind you typically read for a stretch of time so you need to be sure you don't experience eye-strain or headaches. Also, think about the availability of titles AND their cost.... and the ease of downloading them when you're not sitting in your own house with a ready supply of power and a steady internet connection. This comes into play when you're away on a trip and want to get yourself something new to read

Most of all, enjoy it!