I got an email today from Google announcing a new downloadable adwords editor. I downloaded it, but haven't had a chance to try it out. Presumably it's similar to (hopefully better than) other third party software like Adwords Dominator that use the Adwords API to make it easier and quicker to update your Google Adwords campaigns. One obvious plus is the price (Google's software is free). Here's a blurb from their site about the new software:
AdWords Editor is Google's free, downloadable account management application for your computer. Now you can download your AdWords account to your computer, make your changes, then upload your revised campaigns.