This is one of those things that after you get, you wonder how you ever lived without it. The resolution of a monitor determines how many pixels are packed into the screen, so the higher you go, the more screen space you’ll have. Poker tables for online poker rooms are almost always 800×600, which makes a 1600×1200 monitor the perfect size for running four poker tables without any overlap.
The most popular monitor for online poker is the 1600×1200 21″ dell monitor. It will cost you around $500, which you’ll be able to make back in no time comfortably multi-tabling 4 games at once.