custom timings and flat panels

[FamiDriveDuo]

Can anyone here school me on custom timings for MAME and RetroArch? I'm looking to get a new flat-panel PC monitor and want to know of it can be adjusted for certain arcade games like Mortal Kombat (54hz) and R-Type (55hz) for buttery-smoothness and low lag.
Can this all be achieved with an Intel GPU? I'm building a PC and will be using my Core i5-4690K for graphics until I can get a GPU.
Monitors in question-
Asus vg248qe
http://www.asus.com/us/Monitors_Project ... fications/
Dell U2414H
http://accessories.us.dell.com/sna/prod ... u=860-BBCG
Eizo FlexScan EV2455
http://www.eizoglobal.com/products/flexscan/ev2455/

[Fudoh]

The get anything non-60Hz (*) from a LCD, you need a G-Sync monitor along with a higher-end Nvidia card.

* well, to be more exact, most monitors support a wider range of signals, but these will get converted to 60Hz straight.

[Xyga]

Basically the World is waiting for the Messiah: http://www.tftcentral.co.uk/news_archiv ... b270hu_ips

Prepare your money, expect it to be between $700 and $1000.

And moar money: you can get a G-Sync compatible GPU for about $150, check the few custom GTX 750 Ti featuring DisplayPort (necessary) or the new 960 (or wait for a 960 Ti to be announced).

EDIT: here's Messiah #2, even moar expensive, for those who like super wide screen: http://www.tftcentral.co.uk/news_archiv ... er_xr341ck