Well, I don't really know how to catagorize them as "future proof" and what not. Personally, I'd do 62.5 Multimode because it can carry multiple connections down the same pipeline. However, the physical limitations of any of these fiber optic connections is somewhere in the vicinity of 12-14 terrabits per second assuming they are using red laser light to transmit data, which could change depending on what wavelength you use to transmit your data. We don't acheive this now because we A) can't properly focus the light and use low-quality lasers to transmit and B) don't have the processing capability for that much data readily available. You don't really need to future-proof the cable, you just need to upgrade your transmitting and receiving hardware as time goes on.
Multimode just has multiple connections in it and would allow you to have multiple dedicated lines, but single mode (if you only need one connection) has higher bandwidth performance. In reality, you would probably be best off getting cable now before the next-gen stuff hits, since the current cable is glass fiber optic and the next-gen stuff is a plastic that is supposed to perform just as well but be cheaper to manufacture. I, personally, believe that the proper glass is better than the plastic in every way except for cost. While it might perform nearly identical on this existing hardware and laser setup, I doubt it's been through the same rigors as the glass fiber optic has at different wavelengths and higher-quality coherant light sources. -- Todd Millecam
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