Our servers are running on reliable 100 Mbps backbone bandwidth with High Availability resilient hardware located in a protected environment, running Windows 2008 Server R2 64-bit, encompassing such features as;
PHP (currently version 5.3)
ASP
ASP .NET 3.5
Custom error pages
Password protected folders
Master FTP account for web-site management (so you can access all your sites from one easy login for example)