Well after a few days to really evaluate the full picture...........Every thing about Wirecast is superior to Vidblaster in every way.
CPU usage with Wirecast streaming at Maximum settings about 50 percent of the usage of just the VB interface alone.
My stream quality at 720p (with a ingress limit of 1000kbps) is far superior to that of VB.
The addition of actively developed third party applications to control Wirecast (ShotKicker and MidiMate) is phenomenal!
Users actively engaged and friendly on the support forum! SWEET!
I really have to give many thumbs up to those guys over there but I only have 2!
I have immediately licensed Pro and am not turning back unless I decide to buy a Tricaster! LOL