I don't know the specific answer to your question, but I'd think you'd be okay.
I know I've used 25 ft component cables in my home video setup and didn't have any issues. I bought them from a site called monoprice (
http://www.monoprice.com). Good prices and I got the stuff pretty quick.
Anyway, a quick glance at their site shows they sell 100ft SVGA monitor cables, 50 ft composite cables and 100ft component cables.
So again, I doubt you'd have any problems.