I don't think you need "multi-syncing" with a TFT monitor in the same way that you do with a CRT one, my monitor refresh rate is set to 60Hz @ all resolutions and there is no flicker.
TFT screens do not refresh in the same way as a CRT screen does, where the image is redrawn at a certain rate. A TFT monitor will only support refresh rates coming from your graphics card between 60Hz and 75Hz. Anything outside this will result in a "signal out of range" message or similar. The “recommended” refresh rate for a TFT is 60hz, a value which would be difficult to use on a CRT. The “maximum” refresh rate of a TFT is 75hz, but sometimes if you are using a DVI connection the refresh is capped at 60hz anyway.
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TFT Central - LCD Monitor Information, Reviews, Guides and News