Hardware To Archive/Manage Large Collection Of Images?

HarpoX asks: "Technology is quickly allowing digital cameras to produce images as good as conventional film while cutting time and costs. The archiving of negatives has long been accomplished but the buildup of digital images is providing new problems to be solved. With the potential of accumulating a couple hundred gigabytes of images how can one most efficiently deal with the archiving, storage, retrieval, and management of these assets? Tape drives offer good storage capabilities (20/40 GB DAT, 40/80 GB DLT) but seem to leave the management aspect of these files to be burdensome or impossible. CD-ROM's offer a versatile usage and management while being very cheap but are so small in storage space (640 MB) that it doesn't seem worth the time. Networked hard drive space would seem to offer the most management possibility but would its permanence be not as reliable as a static media? Is there some combination of several media that could work together and maximize productivity?"