The x38 chipset is out. The x48, I think, in Oct(right, Jyuu?).
The new Nvidia is out in November or December.
The cool new Intel Wolfdale and Yorkfield processor's will be out in January(not including the Yorkfield extreme edition that come out in Nov.).
If I were you, I'd wait till January or February, when you can get the new latest-and-greatest, or get right now's latest-and-greatest for less money. Just my opinion.