Now in addition to the Live Bootable disk, OpenGeo Suite now has an installer that installs and configures the suite on your system. This is a great way to evaluate a great set of mapping tools. Currently included in the installer:
GeoServer (plus documentation)
GeoServer Data Importer (an automated shapefile importer)
GeoExplorer (plus documentation)
Getting Started Guide
Currently the installer is only for Windows but they have a lot of future plans for expanding this program.