I use BlackBerry Hosting from Skyfillers in Germany.
They provide full BES functionality.
With the BlackBerry Hosting account I also had to order a Hosted Exchange Account.
Microsoft Outlook 2003 license included.
I ordered Hosted Exchange Light with 500 MB size for 9,99 € - I think that price is really ok - and the service is very nice and friendly!

They provide the service worldwide, their website is only in Danish and German - but the employess at skyfillers also speak english I think.

Have a look at it:
BlackBerry Hosting:
http://www.skyfillers.com/Hosted_Bla...hosting.0.html

Hosted Exchange:
http://www.skyfillers.com/Hosted_Exchange.847.0.html

I hope that helps someone....
Me and my company saved a lot of money instead of investing in Exchange, BlackBerry Enterprise Servers and the service/support for it.

Jeff