I have just evaluated Everest Home edition software which produces a detailed report of your computer. You can get a complete report of several aspects of your system like the operating system, CPU, motherboard, sound and video hardware, storage and partitions, networking and other peripherals. Other information include overclocking features, Power Management, detailed memory, BIOS and chipset characteristics, basic software and operating system version and settings. All this information can be extracted into a text, HTML or MHTML file.
Great tool to collect a detailed hardware and basic software report in your company, or to get system information from your client, in case of software debugging.
Homepage of Everest software: http://www.lavalys.com
The other side...
You have to buy the professional edition to use this tool in a computer registered to a Windows Domain!