For those familiar with Windows, you are probably more than use to use the following when you want to find out what hardware is attached to your machine:

1. Right Click on My Computer
2. Go to Properties
3. Click on Device Manager

and vola, your hardware comes up for you. So it took me awhile to figure this out, and given how simple this really is I was almost dumb struck, but you can run:

sudo lshw

and after a second or two, you will get a pretty detailed output of your devices and basic configuration. Very handy for those who like me, are trying to find out the next little fix to their rig but can’t remember what the heck they put into the AGP or PCI slots.