Hello all,
I have the HP tx1000 which I used since last year. I have also experienced the IBM tablet (by the grace of ShyRem). I believe that the IBM model is quite awesome but expensive. The HP I have has been great. It came with Vista (which I enjoy) and all the other bells and whistles for about $1200. I like the finger print option for logging on, I have used the memory stick slots to download pictures often and it was super easy. Wireless capabilities are great and convenient. Battery life is good. I really have no complaints. You can use your finger to move the cursor if you have to. Unlike the IBM, the screen is pressure sensitive and does not require a special pen for writing.
Now, when you all get a tablet, be sure to download the extra tablet software that I think MS has. You will have a program that allows you to make flashcards right in class and share with other students that have the program (only tablet). Also, the OneNote program is the best. Not only can you save the PPT lectures and add notes to them and flag them for later study, I also use this program for other materials, like guitar tabs that I download and any other thing that you want to print. In the print screen, just change the device from the printer to OneNote and it will send your print to the program to be saved. For myself, I would only buy a tablet after having one and will never go back to a regular laptop. Hope this helps. Any other question, feel free to ask. Good luck.