I picked up a Sawstop PCS a couple of months ago (still haven't had time to get the rails, fence, and extension assembled). Freud blades are recommended for the saw. I fell in love with a Freud 40 tooth full kerf combo blade in my previous Powermatic and bought another one when I picked up the Sawstop. Oddly enough, the only Freud blade that is reportedly ill-suited to the Sawstop is the Freud Thin Kerf Glueline Rip blade (the one that was pictured in the cabinet). Supposedly that blade, and from what I was told, only that blade, tends to grenade and come apart when/if the Sawstop's brake is activated. I have no proof (and hope to never have any), so the validity of that statement is purely here say.
I love that cabinet. I have been mulling over what to do under mine. With my previous saws, that space was just a catchall for items that were infrequently used (chop saw, old Craftsman shop vac, etc...). I can say that I will be copying your build, but I probably won't take the time to make it as pretty.