Paizo just released their new Pathfinder update for D&D 3.5.
It's been in beta for over a year, and it's now available for order!
That is, after the second printing comes through...they sold out a week before release, thinking they had enough to last til the end of the year. Demand was much higher than anticipated.
The Pathfinder re-imagining is hailed by many as 3.75e. This is what 4e should have been.
The book is THICK at 576 pages! The hardbook costs US$49.99, or you can purchase the PDF version for only US$9.99.
I purchased my pdf a couple hours ago, and now have a copy in my laptop. It may take a while to get it, as their site is choked with traffic.
http://www.paizo.com