Arduino nano....what is the max display resulution I can use?

What is the maximum resulution I can use with Arduino nano? What is a good display i could buy? What is a good display under 20USD?

What is the maximum resulution I can use with Arduino nano? Using the VGA Shield (http://www.strichlabs.com/pages/vga-shield) you can display 800x480 on a VGA screen.

What is a good display i could buy? Any VGA-capable monitor.

What is a good display under 20USD? Perhaps you can find a used VGA monitor for under $20. (The VGA Shield will cost another $80.)

Thank you,

I don't need so good display, so I'll search some with less resultuion and that will be in my begget.