hi there.
me and my hubby have just moved from india. the cost of living is quite ok for the paypacket that u are mentioning. a good 2 bedder/3 bedder
condo- fully furnished will be SGD 1700 (do not pay more). This will be in the suburbs of singapore ( 25 minutes from orchard). if u stay in orchard then be prepared to pay upwards of SGD 2000.
food and other expenses (if u cook at home) should not exceed SGD 1500 for 3 of u per month.
medical is expensive. make sure ur company covers u and family.
weather is warm, so only aircon costs will be high.
cheers