Terry over at Dotsoft has done it once again with Toolpac 8.0 for AutoCAD. He has packed over 675 tools to increase productivity in AutoCAD into his new release of the popular ToolPac 8.0 for AutoCAD.
For more info see the ToolPac website:
http://www.dotsoft.com/toolpac.htm
Cheers,
-Shaan