Will a GPWiz be able to handle this load? It would be the only "lit" device drawing power on that control panel, and will also have your spinner with an optiwiz, as well as a usb joystick...
No! Not a good idea.... Hook it to a PC drive cable power lead.
Actually, it all depends on what else is on the port. USB is rated at 500ma so *if* the only thing you have on that port is the trackball and maybe 1 other interface, you could even tap into the 5v going to the TB interface to run the light.
Keep in mind also that the 240ma is the figure for full-on, or white. If you are running it red or blue or even a combo for a different color, current requirements will be quite a bit less.
RandyT
Oops - I'm combining control panels. Actually, I will only have the Optiwiz, no GPWiz on that panel. Plus, I am looking at running it blue (I know, but I LIKE the black\blue look

)
So, I should be ok. I'd rather not tap into the pc power, as that will be another cable to worry about. My setup has all usb hot swappable panels, and I would like to keep it at just one cable connection when swapping.
On a separate note: will the new trackball come with a cable to connect to the Optiwiz?
Now I need to talk to my accountant to get the funds to purchase more goodies.
Mrs. Havok? Yes, I do need these...