Ok, now that more people have posted long lists, I don’t feel so bad about mine ;)

• Arcade Fire – Funeral
• Ariel Pink's Haunted Graffiti – Before Today
• At The Drive-In – Relationship of Command (also their EPs Vaya and In/Casino/Out)
• Kae Tempest – Let Them Eat Chaos
• Mercury Rev – Deserter's Songs
• My Morning Jacket – Z
• Public Service Broadcasting – Every Valley
• Radiohead – OK Computer
• Radiohead – In Rainbows
• The Decemberists – Picaresque
• The Diggs – Commute
• The Dismemberment Plan – Emergency & I
• The Libertines – s/t
• The Mars Volta – Deloused in the Comatorium
• The Notwist – Shrink
• Tokyo Police Club – A Lesson in Crime (just a fantastic debut; barely an album though)

German:

• Deichkind – Niveau Weshalb Warum

Some may be an acquired taste (PSB?, also I know that The Libertines’ is not everyone’s favorite – but it’s mine :). The Arcade Fire, even though I don’t listen to them these days that much, is decade-defining for me, as is Radiohead’s OK Computer (together with Nevermind, although for some reason it didn’t make this list).