i'm a nigerian in new delhi!my macau pal wants to invite me to macau to play for 5 days!do i need a macau visa on board a singapore etc airline flight from delhi to macau?my friend is well off & he will email a letter i will show to macau immigration officials that he's my spomsor,but do i need to carry some cash or travellers check & what's the minmum?] US $ equivalent paid on arrival in macau & minimum days issued to nigerians? thanks