Stick with the wired ones.
I have had both Saitek and Logitech.
The Saitek has a much better feel to the keys , but the G11 is better illuminated.
It depends on your set up , screen brightness/glare will effect the how well the keyboard "lighting" performs.
I've got mine just below a 24" screen and the Saitek just wasn't bright enough in the dark.
In an ideal world i would like a hybrid - Saitek feel / Logitech G11 illumination.
Cheers,
Mark*
* currently using the Logi G11