Together with Intel's improved graphics core the top TDP of Sandy Bridge should stop at 95W. This is actually quite a nice number considering that Intel has many quad-cores that easily go over this TDP number even without an integrated graphics core.
The other iteration of Sandy Bridge includes 65W, 45W and minimal 35W TPD dissipating CPU. All Sandy Bridge CPUs are scheduled for Q1 2011 and they need Intel 6 series of chipsets and of course, the brand new LGA 1155 socket for desktop parts.