Okay, hope this is it!

Front:



Note that the top half badge image has no personal data. This shows how my graphic would actually look. I also squeezed in the tags Quim wanted for rooms.

Back:



I added facility address and reception phone number above WLAN info. Should be helpful. Other suggestions incorporated.

Just in case this works, here's the PDF:

http://www.cynicalsigns.com/images/Badge-master.pdf

I see some artifacting in the PDF, so I highly suggest printing a proof before running off a lot of copies.

Speaking of which, I have not yet been able to find A4 paper locally yet, so I may not be able to print reserves.

EDIT: I just corrected an error with the schedule. Saturday and Sunday somehow got swapped when I was adjusting the table.