I can't comment on on-line training, however, to get Teradata running on a MAC you can download Teradata Express for VMWare Player from the downloads section of DevX which will work on a MAC using the VMWare Fusion product.
The VM ware image of Teradata is already installed on Suse linux.
we no need to install any thing. it is a plug and play image.
Regarding training of Teradata you can find below links to find some info. (Be cautious in finding suitable training for you)