So here's a question: Currently we have slightly under 2Tb's worth of mainly ~5MP JPEGs. Increasingly RAWs, still camera-taken MPEGs and AVCHD's from Handycams have also been creeping in which is likely to make the repository grow even more. The images/videos are currently sorted in folders - year, project, milestone, etc. Currently the workflow is 100% Windows - but I need to accommodate some Macs into this environment. It is absolutely imperative that the software work within the current folder structure, and that it be capable of maintaining the current folder structure (via SMB on a Windows Server 2003 machine), and also for a potentially locally located subset. Working within the folder structure, the software should be able to navigate, search, view, email, print, export and edit (either using own reasonable editing facilities for speed, or an external program such as Photoshop). The ability to drag the image being browsed - either from a thumbnail or a full-size window - directly to another application would be highly desirable. Speed (especially of thumbnailing and general response over network or local drives, as well as folder search), reliability and usability are paramount. As a professional tool, costs are secondary to productivity. Which image management app would you say is the best OS X app for this use?