There were over 800 DJs there. But here's the lineup at the Berlinerplatz:

Before the official start:

• Kosheen
• Disco Boys
• Sono - Live
• Marusha
• Tocadisco
• Frank Lorber

and then came:

• Drum Connection
• Chris Liebing
• Booka Shade
• Raresh
• Phil Fuldner
• Moguai
• Fairmont
• ATB
• Octave One
• Bad Boy Bill
• Marco Carola
• Monika Kruse
• Anthony Rother
• Fedde Le Grand
• Loco Dice
• Moby
• WestBam

My favorite was definitely WestBam, but ATB and Phil Fuldner were also great.