How To Buy Property In Dubai

Hello all,
I am looking to Buy Some realty in Dubai and I Wonder What Are The Best Options ... I mean EXACTLY WHERE to buy it - Jumeirah Sports City ... what is the Best neibourhood?
As well, What type of visa do I need to buy property?
And at The End ... Could You Please Suggest Some With Internet site pictures of real properties ... Because All the sites I Was looking Were full of computer generated animation of villas ... but not real pics:)

Thanks a lot! :)