For thinkpads, the Fn+F8 is standard for turning off the trackpad/point. I'm pretty sure thats not the case with other laptop models. I would be surprised if there wasnt a way to turn off the trackpad in the bios in any laptop.
I was actually looking into that last week. I found another set of similar speakers that might work. The Eminent Technology is the company that licensed the planar computer speaker technology to Monsoon in the first place. The LFT-11 seems to be a good fit for computer usage