Admin
-- Update Account/Contact Information
-- Update Billing Information
-- View Billing History
-- Referrals Center

Mail
-- Manage Email Accounts (Add, Remove, Change Password)
-- WebMail for all Accounts
-- Auto Responders
-- Custom Mail Filtering
-- Forwarders
-- Mailing Lists (mailman)
-- Ability to Modify an MX Entry
-- Spam Assasin
-- BoxTrapper Spam Trap
-- Email Address Trace

Stats
-- Webalizer Stats
-- Analog Stats
-- AWStats
-- View Latest Visitors
-- View Bandwidth Usage
-- View Error Log
-- Download Raw Log files

FTP
-- Manage FTP Accounts (Add, Remove, Change Password)
-- Anonymous FTP Controls
-- Ability to change FTP login message

Site Tools
-- Web Protect (htaccess editor)
-- Ability to Change Site and FrontPage password
-- Custom Error Pages
-- Redirects
-- Ability to Edit Mime Types
-- Ability to Edit Apache Handlers
-- (Un)Install FrontPage Extensions
-- File Manager
-- Disk Usage Manager
-- Leech Protect
-- Backup
-- Virus Scan
-- HotLink Protection
-- Index Manager

Subdomains
-- Ability to Add/Remove Subdomains
-- Subdomain Redirects
-- Stats for Subdomains

Advanced Tools
-- SSH access
-- Manage OpenPGP Keys
-- Cron Jobs
-- Networking Tools

Pre-Installed CGI/PHP Scripts
-- Interchange Cart
-- Agora Cart
-- Bulletin Board (YaBB)
-- osCommerce
-- phpNuke
-- Java Chat
-- HTML Chat
-- phpMyChat
-- CGI Wrapper
-- Random HTML Generator
-- Advanced Guestbook
-- Counter Generator
-- Java Clock Generator
-- Java Countdown Generator
-- Secure FormMail clone
-- cgiemail
-- Entropy Search
-- Entropy Banner

And yes, we support multiple languages, here are the languages we support:
-- Brazilian-portuguese
-- Dutch
-- English
-- Finnish
-- French
-- German
-- Indonesian
-- Italian
-- Japanese -- Japanese-shift_jis
-- Korean
-- Norwegian
-- Polish
-- Portuguese
-- Romanian
-- Russian
-- Simplified-chinese
-- Slovenian
-- Spanish
-- Swedish
-- Traditional-chinese
-- Turkish