I currently use a 19" Dell CRT and as you can imagine it is extremely bulky. I am looking to purchase a widescreen flat panel for mainly gaming and I am having trouble deciding between a 20" and a 22" flat panel. On one hand the 22" is obviously bigger but I have heard that the picture doesn't look as good since it uses the same resolution as a 20". Is this really the case and does it make a big difference?