I would prefer a RGB solution instead and if possible use the same monitor for arcade and home systems too.
I'm going to save money for the best solution, I don't want to get the quick & dirty way and prefer the best one even I costing me more money.
In technical way, do you think those systems could look good on an Hantarex monitor and capable of showing the video of those systems equally or better than a TV or Multisync monitor (10884S/CM8833, some NEC ones...)?