Want to build my own arcade machine, please help

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I did a lot of research lately about building your own arcade machine.  But the more i know, the more I do not know.  Please help me with detail information source and books on how things is put together.  And here are some question I have so far, please help.

1/  Can I play classics games with emulators (MAME) and with JAMMA's pcb on the same computer?
2/  Where and how to connect the pcb on to the pc? What do I need to do to make it happen in term of wiring and set up JAMMA's harness?  I don't know nothing about this.  Detail is greatly appreciated
3/  What kind of monitor is best for both MAME and JAMMA pcb games?   I am thinking about using the old crt tv, should I have the one that has the S-video port for both kind of games I want to play?
4/ Since I want to play both MAME and JAMMA games, I know you have to have JAMMA harness for JAMMA games so I will build the joystick with the harness, then what will I do to play MAME games with the same control.

Any advice what I should have and do for the whole project that would save me time and money.  Please do help

Thank you