a mouse is worthless.

intuos is ah ok.

but  Ya need a Wacom intuos pro or better to use all the zBrush tools.

intuos pro medium is recommended or better but small is better then nothing. 

never tried touch n fingers so can't say but zBrush forums could. 

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance