Our little operation here at work consists of 15 computers and 3 printers all on connected with Cat5 cable. We have added switches as needed and the wires were a complete mess of wires, cables and power cords. We have been buying rack mount RAIDs and computers but we just stacked them on a table. We finally scored a used rack for cheap, and we ordered a new 24 port gigabit switch. Today is the day to finish getting it all converted over. Hopefully the random strangeness of the network will go away and become more stable.
We have 17 TB of RAID5 storage and we will have to get another RAID soon. All to keep two guys busy.