Yes, my 15" TFT tv accepts an RGB signal through the scart connection, works with both ntsc and pal. Tested using an A4000, and an A1200 (+ various consoles )
It also has a vga connection which allows for a max of 1024x768 screen res, and works with double pal/ntsc (although may need the "vga only" monitor as well for the tweaked settings).
If you have a gfx card, you could plug the native rgb to the scart, and the gfx card to the vga, and switch between inputs as required on the tv. Res is pretty poor by monitor standards though.
Bought it from a local Tesco store in the uk. Its a "Technosonic 15" LCD TV", model LCD5015. Knowing how these brands are in the likes of tesco, it's probably a rebranded bulk model.
Its great for older consoles and amiga normal mode though. Interlace modes still flicker like mad though.