One of my users is the leading scientist of a project funded by the European Union. He "absolutely needed" a Customer Relationship Management (CRM) software. And (surprise, surprise) someone already had told him "the solution": Act! by Sage software (in Germany, you might order it from Amazon.de, for example).
Now, upon looking at this software, I decided it was actually a piece of very expensive crap (the distributors he had chosen would charge us 700 EUR for 5 licences...). Let me outline the facts:
There are several other stupid details, which are just relevant for my department, so I won't bother you with them. So, what's the the bottom line of this? Well, it has taken me 4 (four!) weeks to convince my superiors of these facts. My solution is straightforward: Use Thunderbird with SyncKolab in conjunction with a mailing list every participant is subscribed to, and you're done. Congratulations, you just saved 700 EUR.
Note: Aethera, a Personal Information Management (PIM) software is also very promising. In the near future, I should have enough time to conduct some tests...