Bring your 17mm and a 50 f/1.8.
Both light and small enuf.
Used a 17-55 in Malaysia. It was more than adequate, restricted myself to somewhere <30mm.
I believe your 17mm prime should be alright.
We live in an age when unnecessary things are our only necessities. - Oscar Wilde
i no budget
so brought along kit lens 18-55 with a 0.5x wide angle adaptor when i was there heehee
but i use 18 mostly and then crop from there.
No doubt it has to be the Nikon 18-200 VR lens.
Love my 17mm.. haha... back from BKK! woot! Was there during the bombing... siren were heard throughout the night...