Make sure to either get a pre bought taxi ticket(you can find ticket shopps at the major attractions ) or a yellow taxi that are the goverment taxi. If you take a red taxi you will end up paying a very high price.
Also if you need to take the bus, buy it from the fixed ticket shopps, dont buy it from the street. You have no guarantuee that the bus go on time if you buy it from the street
To everyone that are going to KL and looking on the internet and find guided tours to Petronas Twin Towers i would just like to say. To go up in the tower is free when i was in Kuala Lumpur. I remember that the tower was shut for visitors on mondays. I can also say that the towers are owned by a oil company, and not international investment bank, that they say in entrapment. You have the shopping center KLCC right next to it as well as a big park. I dont have any photos to show since my camera was stolen in Malaysia..