You do not need the CD to download and install Stardock products. You will get links in an email after your purchase to the products. These can be installed using Stardock Central -
https://www.stardock.com/products/sdcentral/ and any updates will be made available there.
For the best value I would suggest going with ObjectDesktop -
https://www.stardock.com/products/odnt/ which has many of the products you may be interested in -
https://www.stardock.com/products/odnt/features.aspPlease note that ObjectDock Plus is not included in the ObjectDesktop package.
The programs you purchase will all be transferable to your new computer. "CD not required"