new navigation for website

http://www.urlauburlaub.at

we are one of austrias top leisure travel websites, with more than 400.000 unique clients per month. 128.000 accomodations and other travel related companies promote their services on our website.
for us, a kind of social web style (facebook, twitter, ...) is very important

german speaking consumers spread all over europe; age: between 20 and 60 years;

we need a new, horizontal navigation to search among categories (tabs)
these categories are:

-Unterkunft (accomodation)
-Essen & trinken (food & beverage)
-Skigebiete (ski resorts)
-Infrastruktur (infrastructure)
-Bergtouren (mountain trails)
-Ärzte (doctors)
-Sport & Freitzeit (sports & leisure)

Additional we need two more content categories:
-Regionsinfo (here the consumer can find a lot of information and facts about the regions)
-View Toggle (between map and list display)

Additional we need place for ad-placements:
fullsize-banner 468x60 pixel somewhere in the respective area

have a look at http://www.urlauburlaub.at/hotel/salzburg/ and the attached screenshot with notes.