Safari in Namibia (Windhoek)

Hi Everybody,

I am living in Austria and I am planning to visit Namibia for a Safari in December, could you recomend me a very good safari's tour company. Unfortunatelly I just have 8 days, so I am planning to do just the Safari.

I would also like to ask about the Christmas culture in Windhoek, I will be there on the evening on 24th December and I am looking for ideas.

Thank you in advance,
Julio