I work as a receptionist but I am lucky, I am allowed to listen to music at my desk because my employer is awesome! There are some bands, I would not play at my work, especially at the reception area but there are a few that I find is acceptable for work.
What I listen to:
The Cure, Siouxsie and the Banshees, The Sisters of Mercy, Abandoned Toys (calming, perfect for when clients are around), classical music (usually play when I am pissed off about something), Sopor Aeternus and the Ensemble of Shadows, The Ramones (I know it isn't goth or anything but they kick ass!) Emily Autumn, Voltaire (certain songs I don't play - you know which ones) London After Midnight, The Nightmare Before Christmas Soundtrack (come on! You all know you listen to it!), David Bowie, Delirium, Loreena Mckennitt, Clan of Xymox
If it is at the end of the day or REALLY quiet and all the clients are gone home: Rammstein because it gives me a great boost, Blutengel (yes I like some EBM and it gives me energy), Voltaire's Bitrektual album because I am geeky and the songs crack me up. I also listen to the Rocky Horror Picture Show soundtrack with certain songs taken out, again, you know which ones!
What do you guys listen to at the office?