My server system consist:
Half rack, Netgear GS724T 24port Gig switch
(1) Dell R-610 96Gig of Ram and 7tb of storage running ProxMox and hosting 8 websites and Zimbra email server (Awesome)
(1) Dell R-720 32Gig Ram and 2tb of Storage running Virtualmin (Play computer)
(1) Rasberry with 500Gig SSD hosting the PfSense Firewall (Nice little system and was cheap about 200.00)
(1) Netgear AC11750 WiFi router