Viperlair posted a review on the Intel 'Black Creek' 955X Motherboard

Should you get this if you already have a 925X or 925XE board? Probably not, unless Dual Core support is important to you. If you don't already have a 925X or 925XE board then you may as well start at the top with a 955X. However think carefully, as while this is a good board, you will likely find more features and accessories with a slightly more expensive, or even cheaper third party manufacturer 955X boards.

Intel 'Black Creek' 955X Motherboard Review