Everything you would want to know about Ivy Bridge and Ivy Bridge-E, straight from Intel - 128 complete slides of info (downloadable .PDF, and .JPG) *very nearly everything
- Includes Sandy Bridge vs Ivy Bridge cross-compatibility info, upcoming CPU line-up, and 7-series chipset specs
These are old, rumored prices, but I'll post them for anyone who still hasn't seen them.
Prices may, or may not, have changed. For now, anything that hasn't officially come from Intel is speculation, including this.