Personally, I would wait a bit for some good Windows 8/Windows RT tablet with pen support, if note taking is important to you. It might not be the best option.
I'd go with this mostly because they're coming out in 2 months, and if they hit the rumored $200 price point with the RT it will be a steal. Windows RT devices will also all come with One Note, which is a pretty awesome program for exactly what you want.
I want a tablet sometime soon as well, but I'm thinking I'll hold off till November/Christmas because there are so many great things that are just around the corner, and by that time there should be real world reviews of windows 8, which looks at least like it has the potential to be the best tablet OS. It may not be executed well, but just off what they've showed the potential is there.
edit: one thing I'd definitely be on the lookout for is something with a stylus. I'm always surprised by how few tablets have any sort of stylus support. It's a large reason I haven't bought one previously.