Recently (today 11-15-06) if found out about a nice piece of free (as in beer) software to help manage our IT environment. Spiceworks Desktop is impressing me a whole lot right now. It does auto discovery of the network (including remote subnets) and brings back lots of useful information. It (apparently) runs on "Ruby on Rails" but I have not verified that yet. Dispite a little bit of troubleshooting everything has been working very well.
They seem to have a growing community of users that make suggestions for improvements / bugs and the developers actually read and fix the issues. Hopefully soon this product will grow to support more than one (1) IT professional. Check back later and I should have a better understanding / shortcoming list of the product.