From 9to5Toys.com:

Amazon just launched pre-order pages for the new iPod Touch, Nanos and Shuffles. They will ship probably right after Apple starts with sales tax in only some states.

Meanwhile. Best Buy is having a MacBook Sale this weekend with up to $200 off MacBooks. The new Airs with 4GB of RAM start out at $949 and many 13″ Airs/Pros are $100 off, which are the lowest prices we could find.