I just found this application and from what I can tell it seems like the coolest hardware/benchmark tool for Linux that I've seen. The main thing I like about this application is that it allows integration with other apps, so if there is already some benchmark took out there hardinfo can be used as a single GUI for that and the other tools it already has included. Has anyone else used this tool yet, and if so then do you know of any other similar tools? Here is a link:

http://hardinfo.berlios.de/HomePage