Glass v.s. Plastic Toslink

Actually, I have no experience at all with optical. Is 2m too much? Will there be a significant degradation from, say, 1m?

At these short lengths, the amount of bend in the cable, the type of fiber used, and the quality of the end lenses will eclipse the length of the cable when considering degradation. phone companies use fiber optics to transmit digital data over vast distances, I don't think the 1m to 2m makes any difference. I have read in several different sources that when using digital coax, length of cable must be 5' minimum to avoid signal bouncing within the cable, but that is the only length-based issue I know of.

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The five foot limitation mentioned above is B.S. please disregard.

Agreed, I've been told by many that there is no degradation for long lengths of optical cable.. I've used a 3 and 10 ft length and can tell no difference.
I use silfatec...

Source of "B.S." above:
http://www.positive-feedback.com/Issue14/spdif.htm
only applies to digital coax, not optical cable.