Word from Fortress Center is that there will be another Half-Life patch coming soon. It's not the big patch with new levels and player models however, but it does add a new feature called custom resource downloading. You can now created for example a file called mymap.res that contains info on what files are associated with your custom level such as the new texture wad or models. There will be more info soon, and the release is about a week or so away still. Thanks Ryan Stotts