Intel Sandy Bridge (even the mobile version - Huron River platform) is way too hot and power drainer for a tablet, perhaps a tablet PC like the next generation of HP 2740p Tablet PC will have Mobile Sandy Bridge platform there.
Well, Intel HD Graphic 3000 is indeed pretty solid GPU and pair with the Turbo Boost technology, which can run many intense hardcore 3D games.
FYI, since Skedi you are planning to get a tablet for taking notes and play some games, tablet pc is more suitable for you as typing on virtual keyboard is no fun at all, system weight and pricing is another criteria for you to consider. Here is the pretty latest Best Tablet PC Comparison
chart with pricing and key features for your reference.
But bare in mind if you are going after mobile Sandy Bridge Tablet PC, be prepare to pay for the premium.