Just wondering - is the SWA Dimension Pro in Depth video tutorial available in the Cakewalk store for $19.99 the same as the SWA Dimension Pro in Depth video tutorial available from the SWA website for $4.99?

yep, more than probable.. SWA did a sale of them ages ago dirt cheap..

the only thing that might be different is the video format.. but I guess it's all the same .. as Stuart (the guy who made them) did them quite a while ago.

have you looked on youtube to see if they are there?

You'd be amazed at the number of  instructional videos for all sorts of synths.... just do a search on the synth's name.... lots of people fancy themselves to be instructors for their favorite synths and make videos. Some are very well done and highly edicational....some are not, but they're all free.