I'm getting a new monitor but I'm going to use it in a dual setup with a samsung 1200 nf. So I will be using the monitor for the settings windows in photoshop, instant messaging windows and some internet browsing. It isn't essention that I get a top of the line monitor. What are my option in the <300 range, I would be willing to consider a 17 inch monitor depending on the price. Would interference from the second monitor damage my samsung monitor.