Great
Both paid versions have external mixer.
As you are in a hurry you best use the 32bit version or at Mac run in 32bit mode.
64bit version requires 64bit audio and video drivers which aren't always present.
Both versions are part of the installation and install.
Only remaining decision is full version or Cross DJ.
Full version has DVS and full video support including 8 video sample pads. Check the comparison chart for the details...