Reliable and robust networks don't just happen. They take planning with an eye on future needs. Quality installation services are a good start.
Network monitoring lets you know who is making those lights blink and whether they are working hard, or wasting time and resources.
I use and recommend OPENDNS to control internet access and network hardware from Cisco.
Databases, email, spreadsheets, and shared documents all require fast and reliable servers that are backed up every day or the data you need may not be there when you need it.
Backup and disaster recovery plans should be in place and tested before they are needed. I recommend servers, PC's and laptops from Dell and HP and I recommend backing them up to high capacity tapes using Backup Exec. As a secondary backup, files can be copied offsite to a “cloud” server.
Open source programs can help you do more with less.
Did you know there are free and low cost alternatives to Microsoft Office?
Open Office is compatible with your existing Excel, Word and Power Point files. Libre Office is too.
MySQL Community Server is a freely downloadable version of the world's most popular open source database.
Wireshark is a freely distributed network protocol analyzer.