From Komodo Laboratories:
Inventory and discover all computers using NEWT Professional network inventory. Gather important hardware and software information without ever having to visit a remote machine. NEWT uses advanced audit methods to retrieve the data you need into an easy-to-read spreadsheet-like view. Export all data to an MS Access database to generate detailed queries. Scannable information includes CPU (type, speed, cores, etc.) CPU temperature, operating system, Windows product keys, IP address, network adapter, serial number, asset tag, video adapter, audio card, computer monitor info (serial number, size in inches, type, etc.), hard drives (size, types such as IDE, SATA, serial number, SMART health status, manufacturer, power on hours, power cycles, etc.), logical & network drives (drive letter, type, free space, partition size, etc.), network share info, memory slots info (including manufacturer, speed and type), hot fix info, installed applications (software name, publisher, version, product keys, install path, etc.), printers, Windows services, fonts, environment variables, system slots, virus definitions, startup programs, and many others. Export data to CSV, HTML, Text files or a fully relational MS Access database.