I just released the third Feature that is now part of the Trentacular SharePoint 2007 Features CodePlex project: Site Settings Custom Actions
The Feature currently adds just a single custom action and page for exposing and managing Web (Site) properties with a similar UI as the previously released Farm Properties Editor (part of the Central Administration Extensions Feature).
The Web Properties Editor has proved convenient for externalizing site-specific configuration settings from which your custom features, whatever they may be, can read from. It also abstracts away the peculiarities of the SPWeb.Properties and SPWeb.AllProperties API which I wrote about in my last post - a must read if you are a SharePoint developer and haven’t already.