Which herbs and spices in Malaysia would you recommend me? Why?

What are some of the different spices and herbs that are used in your local cuisine? If I had to try two, what would they be and why would I find it the most memorable?
Update: 10 winners with the best answers will receive my new cookbook, My China. However, only registered participants in Malaysia are eligible, please register here: http://advision.webevents.yahoo.com/kyliekwong08/rego_my.html Keep those answers coming!
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