And the Ultimate insult............
Graphics card is more important.
Monitor is not as important as the Video controller.
I am buying components for a new system, and a 17 inch monitor was quoted at $175.00 (American). Just make sure you get a Multi-sync monitor with a dot pitch of .28 (Mask pitch) or preferably less. My current NEC 15 inch monitor is rated at .25 mask pitch, which seems okay. The monitor should be capable of 55-60 Hz refresh rate at 1280 by 1024, and higher refresh rates at lower resolutions. Anything less than 55-60 Hz causes eye strain because you can notice it flickering. I am not sure, but at lower resolutions, 55-60 might not be adequate. The better monitors have higher refresh rates for lower resolutions.
Multi-Sync might be NEC jargon, and other manufacturers might call it something else. I do not think any reputable dealer would sell you a monitor that was not multi-sync, but they might. I am not even sure that such monitors are being manufactured for use with computers anymore. They might be sold for use as dumb terminals for mainframe work stations.
The better video controllers now have 32-64MB of memory on the card. 16MB might be adequate, but I do not really know. Beware, some video cards claim a lot of memory. but actually use some of the CPU memory on the Motherboard.