This module builds user profiles as content (aka nodes), which opens the opportunity to use all the powerful modules for content for user profiles too, e.g. the Content Construction Kit (CCK). It's intended to be simple and useful, but extensible by further modules.
Content profiles can be restricted to certain roles; the module also supports separate content profiles for different roles.
This module allows for users to book resources for use during events. For example, a student can book a microscope for use within their lab. The D7 version detects overlapping dates and conflicts between nodes, and lets you respond using Rules.