Firstly Good choice on the Machine, we love our B400W
With regards to the CAS our application engineer switched it off when he installed the Machine & stated it was very time consuming to put all the relevant info in!!!
I have had a play with it but I have never switched it on & I probably won't, we do a lot of prototyping on it & it's just something else to add to the lengthy set up time!!!
With the tool models Sandvik have links on their website, we used them for drawing the tools up in Mastercam