Hothardware published a review of the upcoming new Intel P45 based motherboard from Asus: Asus P5Q Deluxe.

Quote from the review: "Intel is planning to officially release a new mainstream chipset in a few weeks, the P45. From a feature standpoint, the new P45 is somewhat similar to last year's P35. The P45, however, will have official support for PCI Express 2.0, with a more flexible lane configuration for multi-GPU graphics, and the chipset itself is being manufactured at 65nm as opposed to 90nm.

Using the more advanced process to build the chips should result in lower power consumption and lower operating temperatures as well. The P45 will also be paired up with a new ICH10-series Southbridge, which is similar to the ICH9 sans a few legacy features.
Asus showed off a few P45-based motherboards at the CeBit show a while back, but at the time, the boards weren't quite ready for the market. We have, however, gotten our hands on final production version of the Asus P5Q Deluxe, which should be available soon."
Read the full review on Hothardware.