Let's say you purchased software to help building staff streamline rent-check processing or let residents sign up online for cable. Perhaps you contracted with a service to handle the screening of prospective tenants. You may have had to struggle to incorporate these little islands of technology into existing paper-based systems for collecting rent, maintaining units, and marketing your building. In fact, you may be pushing still to realize the promise of the Internet to make your processes run more smoothly. Maybe you've even wondered whether it is worth the hassle.