the picture looks blurry but i believe those to be BNC connectors which would belong in a professional monitor. they screw/latch on. look for the groove on the outside wall-- should be one big groove not a bunch of thin screw thing like coax
s-video should work fine if you can secure it, the fun about BNC is just they can't be yanked
ETA: to clarify, BNC is a connector for coaxial cable, but it's not the usual "coaxial connector" that you find in your cable box at home.
ETA again: here's a converter from component video to BNC:
http://www.cablewholesale.com/produc...FYJ8fgodrokMpA
CHEEP