IT Asset Management software

[shadow_man]

For manual capture i'd recommend Tracmor - tracmor.org
For capture with an agent i'd recommend OCS as someone recommended above. - http://www.ocsinventory-ng.org/en/

Tracmor - easier to use for manual parts / asset capture
OCS - automatically captures things like installed software / license keys etc etc but i've found that its not reliable on the hardware capture all of the time - which is why I prefer to do it manually. (I export from OCS in to Tracmor and then update Tracmor with the correct details if needed). I then use Tracmor to export to Excel and hand over to the bean counters when and if they need an asset report. I also use Tracmor to keep track of stock like our iPads that are booked out to staff (mobile library with our Amazon ebook collection)

If you're keen to try Tracmor i've written a walkthrough for installation on an Ubuntu Linux machine:
http://jerome.co.za/tracmor/

 

[Discusfish]

The company next door uses http://www.lansweeper.com/

 

[Telasera]

Have a look at Open Audit - http://www.open-audit.org/

 

[TheMightyQuin]

The biggest issue we've found recently is MS Licensing Inventory.

With MS SAM Reviews, they require detailed lists of Licenses. With OLP it is obviously easy, but finding software that will extract License Keys is a nightmare. The key extracted is the Master Key used by the vendors, but MS insists on the key that is on the sticker.

This means a person has to physically go to each desktop/laptop and read old, faded stickers. The margin for human error here is enormous.