Go to the LCD section of NewEgg and have it sort the items by price. Then start picking through them. I assume you've done some research one what the aspects of monitors are (such as dot-pitch, contrast, view angle, etc), so you should be able to see how high you can go till you reach your price.
LCD means liquid crystal display....it is ideal for business use and it consumes very very low voltages.......however if u need for gaming....i recommend you to buy a CRT (Cathode Ray Tube) the ones present in 4:3 PAN tv sets....its quality is best...tho is consumes much power