Ah the age old question!
I'm in the market for something awesome. I just sold my tablet pc, which I thought was a giant piece of crap. It ran hot, it was horribly slow (perhaps vista is to blame for that though) and the viewing angles on it were so bad that every piece I've painted on it came out grossly saturated. I blame this on my frugality mostly, because I wanted something I could you know, afford as an artist. But now I'm throwing caution to the wind. I just want something that works. I liked the portability of my laptop, and I'd love to get something similarly so, but I have yet to read a review that made me think it was worth getting over a Cintiq. And not only that, but the reviews I'm reading about the new Cintiq aren't entirely favorable (the 12in). I'm considering going back a generation and getting one of the older cintiqs on ebay, or just coughing up the 2k for the 21inch, but I'm afraid of having the same experience as my crappy laptop. Plus, I really do want to be able to paint on the go.
What to do? Anyone have a laptop they love? Anyone go Cintiq and can't go back? Thanks for all your help guys!