What free docking programme would you recommend?
I suggest following softwares. Preference is as they are numbered:
1. Autodock Vina
6. VLS 3D
Others which require subscription but are also available in free ware for limited time:
Hope this helps u :-D
I would suggest that you start with Auto Dock4 first. Then you may want to try it with AutoDock Vina. Note that the Vina is a different generation rather than just an upgrade of the AutoDock. I find both of them very user friendly. Note: Direct comparison of the two with the same target sometimes may not give the same result. It varies with the nature of the target.