There's a Barcamp in Klagenfurt!
And I did the poster for it!
I wanted to keep it all in green and chose a striped background (matte). Then I made a list of keywords from the last Barcamps and feeded that list into wordle. I used the print option of the java applet and printed it into an pdf file, which i opened in Adobe Illustrator and exported it as AI into Photoshop. Voillá - there was the tag cloud in a vector format in my PS file ;)
To make it visually more appealing I added a Frame with a slight drop shadow around it. Pretty simple :) I chose Aller as a font - I found it at smashing magazine.
Hope you join us at the barcamp. Unfortunately I'm in China at the moment and won't be able to attend this year.
If you want to print the pdf it can be found here (A2, CMYK, 300dpi)