Mark,
What software do you plan to use for editing?
This Toshiba is a much better option than a 2-year-old MBP in terms of performance: much faster. But... there are two "buts" actually:
One, the drive is 5400rpm; if you plan to edit off of it, it's recommended to replace it with a 7200rpm model.
Two, the graphics chip. If you plan to use Adobe Premiere Pro, you would want a graphics chip that is supported by Adobe for GPU acceleration, or can be "hacked" to support it.
Alex Gerulaitis
Systems Integrator
DV411 - Los Angeles, CA