Best Tablet For Writing 2009 Is There A Writing Tablet That Has A Monitor?

Is there a writing tablet that has a monitor? - best tablet for writing 2009

I am a teacher, and I want to stop writing on the board already exists. I want to write directly to my PowerPoint presentations. Vi Tablet PC, but expensive. I have seen an example of a writing tablet, genius, but I find it difficult to handle because you can then watch the monitor while you are typing. My question is .. Is there a pill that has a monitor? I mean, you can write about him and see what is written at a time?