The NGO Group released their ATI Optimized Drivers based on the new catalyst drivers 4.6.

read more for release notes and links.

Update; The NGO Drivers has been updated in the last few hours to include an exclusive: X800Pro > X800XT Softmod. [Release Notes]
* Based on the New! offical Catalyst 4.6
* Added OpenGL Driver "Extreme" set (Beta!)
* Added Softmods (9500to9700 and 9800SEto9800Pro)
* Added Support for IGP/Mobility/FireGL cards

NewGenerationOrder.org