The (smart) choice is all about:
1) which formats are you in?
2) do you really recognize both benefits and limitations of e-Ink... or rather wanna multimedia-centric experience and teh COLOURS
3) which size and usage you're looking for
4) do you want to pay for some flavors: like dictionary, web access, sketches/memos/sidenotes (personally, I really love those sidenotes feature!)
5) would you stay calm and happy with DRM and/or central bookstore
For the starters, I'd recommend looking at the latest generation of Sony eReaders (350/650/950) though there are gossips that these Pearl screens are not very stable - but Sony (and the very recent Kindles) are the only devices with this type of screen and they are much better than old generation.
Or buy iPad and let you eyes burn xD at least it'll do you much more fun xD
