I picked up this book:Programming Microsoft Windows Forms
and I've had a quick read through and it's quite good! It's not as meaty as some other books but it's also not just a reference which is exactly what I wanted (I've got MSDN for that and so have you!)
I'm planning on building a little application for work to start with that should cover all the components I need and then hopefully I'll be able to build tools a lot more quickly.