Interestingly enough a lot of studies have shown the single greatest increase to productivity on a $ benefit ratio is to add a second monitor to your computer. In our case that means, for example, you can keep KKF open on one monitor and your real work on the other. (Or I suppose email on one and an excel spreadsheet or powerpoint or just a browser on the other...)
Almost any desktop (and essentially all laptops) make it easy to add a second monitor. Windows and MAcs noth allow you to have two independent screens. (You just need to make one change to the display options in the Control Panel for windows)
Monitors are really really cheap now and 2 inexpensive 19-21" monitors will make you more productive then one expensive 24" monitor once you get used to them.