MacRumors.com

With today's announcement that Mac OS X 10.5 Leopard would be available on Friday, October 26th at 6 p.m., Apple also released details of the Mac OS X Leopard Up to Date program and educational pricing.

- First, you can simply pre-order Leopard for $129 at the Apple Store for "free delivery on October 26th".
- If you purchased a qualifying Mac after October 1st, you can upgrade to Leopard for $9.95 (plus tax).
- Educational customers have found that the pricing for Leopard is much higher than for previous versions of Mac OS X. Education pricing comes in at $116.
- Amazon has been offering Leopard for preorder, for $20 off and adds a $20 rebate for the purchase of both Mac OS X Leopard and Parallels 3.0.
- Small Dog is offering Leopard for $10 off at $119.
- MacMall is offering a $20 mail in rebate for Leopard.

Note that Apple also offers Leopard Server and Leopard Family Pack ($199).

Update: According to the comments, Educational institution pricing is still $69, so individual universities may resell Leopard to students/faculty for this discounted price.