The *best* screensize combo for the Mac Mini, in my opinion, is the 23" or 24" display. You can grab a 24" DVI display on the cheap now, probably around $250. This size will allow you to run at 1920x1200, which gives you great screen space at this resolution, and it looks great. I am using an ACD 23" with my MacBook Pro and love it. I had a 30" and did not like it, so I sold it. The 23" puts everything in your immediate viewing area so you don't have to tilt your head, and you can keep the display at a comfortable distance. 24" would do just the same.