I just got asked if we could do a setup that I've never tried before: multiple computers connected to only one monitor. Apparently, the person who wants to do that wants to have a sort of "hub", like the ones they use to switch between VCR/Cable signals for TV input. Is there such a device? If there is, what's a good brand? Is it bad for monitors to do be switching between multiple PCs? So mahy questions...I would appreciate any help from you guys (and gals!).