Google has recently provided the following helpful updates to the Search Queries component of Webmaster Tools:

• Average position column now appears on the main Search Queries page.  This provides a quick view of where site is showing in search results for specific queries.
• Displaying total for Impressions and Clicks also appears on the main page.  This provides a total count of the data displayed in the Search Queries table. The number in bold appearing just above it is a total count of all queries. This includes the long tail of queries not displayed in the Search Queries table.
• Added an Average position column to the Search Queries download.
• “Starred” tab added to Search queries: Next to each query on the Search Queries page there is now a clickable star icon. Click this star icon for any queries of interest. All of starred queries will be consolidated under the Starred tab allowing for quick reference and availability.