Features:

Comprehensive hardware information
System health monitoring (Thermal, Voltage, Fan, Power)
Table, Logfile, Graph, Tray, Gadget, LG LCD reporting
Basic benchmarks
Text, CSV, XML, HTML, MHTML report formats
Periodical updates
Windows 9x/2000/XP/Vista/Server 2003/2008/Windows 7
Platform: 32-bit (IA-32), 64-bit (x64, IA-64)
Available as HWiNFO32 SDK (Custom Client) !