Research figure as of 14th June 09:

Tiger Airways
SG - Macau
13th Aug (Thurs) 11.30 am to 3.10 pm, costL 5 + 85 = 90
17th Aug (Mon) 3.45 pm to 7.25 pm, cost 5+95 = 100
Total = 190 + 10 (luggage charge) = 200 (220 with insurance)

Jet Star
SG - HK
13th Aug (Thurs) 6.40 am to 10.25 am, cost 110 + 28 = 138
17th Aug (Mon) 8.15 pm to 11.50 pm, cost 110 + 35 = 145
Total = 283 (should be ard 300 with insurance)

Plan 1 (To and fro via Macau)
Day 1 (reach ard 3.10 pm): Macau
Day 2 (leave for HK early morning by ferry): Dysneyland. Wohooo!!
Day 3: Lantau island + Shopping
Day 4: Shopping and chill
Day 5: Return to Macau (go back Spore @3.45 pm)

Total cost: 220 + 60 (ferry ticket) = 280
1 night at Macau & 3 nights at HK, estimated hotel = (4*120)/2 = 240
Total (flight + ferry + insurance + 4 nights hotel) = 520

Plan 2 (Go via HK, come back via Macau)
Day 1 (reach at 10.25 am): more than half a day @ HK. to familiarize & shop ard
Day 2: Dysneyland
Day 3: Lantau Island + shopping
Day 4: Go to Macau
Day 5: Go back Spore at 3.45 pm

Total cost: 138 + 30 + 110 + 20 + 240 = 538
Benefits: Time save of ard 1 hr fr 1 way ferry and additional time on the first day (ard 5 hrs)

Assumption:
- Cost of hotel ard 120 per night
- Air ticket cost remains unchanged (the last day of promotion for Tiger airway is on 17th july and it might increase anytime in between. Now it's only 5 bucks. But the airport charge is damn ex.)
- If we book now, we might need to bear the risk that H1N1 might get worse. (it will only be covered by insurance if there is travel warning that force us to cancel our plan)

p.s. it will be cheaper if we can get another person to come with us. share the hotel cost.

End of report.

see ya tomo...