Budak twittered, I clicked, and lo and behold:

Just received an email from OSA:
The Office of Student Affairs has recently purchased the National Heritage Board’s institutional membership for the NUS community. This membership will expire on 23 April 2009.
All NUS staff can enjoy 20% off admission fees to the following National Museums: Asian Civilisations Museum, National Museum of Singapore, Singapore Art Museum and the new Peranakan Museum. Details on these Museums can be found at www.nhb.gov.sg. Staff must produce their Staff Card at the Museum’s front desk before admission.
For more information on other related discounts and privileges please refer to this document.
They just clarified – free entry for students!
First time Entourage has warned me!