I take my comment back about getting fleeced. I just called my agent and he seemed really surprised when I said that I thought I had to pay the stamp duty...I was on the MTR when he told me so couldn't hear the phone very well. He confirmed that the stamp duty will definitely be split 50:50 with the landlord.
Thanks very much for confirming anyway guys.
I wouldn't expected the agent to rip me off as he seems a very honest hard working guy. I've got nothing to gain from this but I would definitely recommend Eric from Midland Reality (la Grandoise branch) if you're looking to buy/rent an apt. around Tsueng Kwan O/Tiu Keng Leng area. He lived in Australia for 5 years so speaks decent English and is a nice guy and not at all pushy. I know I've changed my tune, but you have to give praise when it is due. That's what this forum is for, n'est ce pas...