Laptop Information?

I am looking to get a new laptop in the next couple of months. My wife will take my Dell Latitude as she needs something to take for her work. She is a flight attendant , and all scheduling is done online. It has been a great computer, but it is more her speed than mine these days…

My question is, should I go the tablet route? I am doing a ton of Photoshop work, so processing power is a key. What intrigues me is the power of One Note for note taking and gathering information. And as a blog geek, I love the ability to read my RSS feeds in portrait mode. I am a big Dell fan, but they have not entered this market and Toshiba looks like it is the top dog. If anyone reading this has any input, please send over a comment.

Just saw Robert Scoble saying that a million tablets have been sold, so it looks like the technology is fairly stable.

Thanks!