Voxels, voxels I tell ya are the future, Ever since I played Outcast back in the 90's I have wanted em - now we do have em - 3D coat has a voxel sculpting section - which allows you to create holes lumps whatever you want - no restrictions- Just started playing around with it- In demo mode. Think it may well be worth a buy- has re-topology tools and UV mapping poly painting- the works bloody lovely and the interface is relatively normal and intuitive(Maya esque).