I've tested and used the MXW for a few days now and i am quite impressed with the features! You will need a newer GPU with Pixelshadertechnology to run it as it uses hardware acceleration. Check the FAQs on the website on this.

VJamm Classic was one of the first video samplers to be comercially available - it is still good software and remains fast and stable - it has some unique features such as support for MJPEG hardware such as the DC30 and broadcast systems like the DPS perception.
please see the VJamm 2.5 review for details of the current VJamm version