I'm not sure that an LCD would last longer than a CRT.
The backlight in the panel is going to get dim and fade to orange and then go out all together eventually. That nice bright picture will only last so long. Not to mention you're going to have a hard time finding a 4:3 or 5:4 LCD larger than around 21".
In my opinion about the best "big" screen right now is the Makvision 29" SVGA:
http://www.xgaming.com/store/arcade-parts-and-accessories/product/weiya-29-flat-screen-crt-arcade-monitor/You can also purchase this through the Happ-Suzo page, but it's more expensive and the shipping is really high.
This is the monitor I have in my cabinet. It runs 31kHz, up to 800x600, which is sufficient for many PC games (SFIV looks pretty nice on it). And by running by running games in mame at 2X their native resolution you get a picture which is indistinguishable from native on a 15kHz monitor.
It connects via a standard vga cable and appears to the computer as a regular monitor. It's literally plug and play for basic operation.