Below is a list for suitable Carry Trade currency pair, with positive yield. Assume all trade size is 10,000, with leverage 50:1. Price base on market price on 11 April 2011. All the interest calculation is base on OANDA brokerage rate.
AUD/JPY, LONG (89.178)
Deposit required = 264.98 SGD
Interest / day = 1.41 SGD
1 pips = 1.49 SGD
Spread = 2.1 pips
AUD/USD, LONG (1.05416)
Deposit required = 265.04 SGD
Interest / day = 1.38 SGD
1 pips = 1.26 SGD
Spread = 1.4 pips
EUR/USD, LONG (1.44278)
Deposit required = 362.79 SGD
Interest / day = 0.15 SGD
1 pips = 1.26 SGD
EUR/GBP, LONG (0.88107)
Deposit required = 362.87 SGD
Interest / day = 0.07 SGD
1 pips = 2.06 SGD
Spread = 1.2 pips
EUR/AUD, SHORT (1.36932)
Deposit required = 362.87 SGD
Interest / day = 1.49 SGD
1 pips = 1.32 SGD
Spread = 2.4 pips
Seems like most of the positive yield is highly related with AUD, certainly, with AUD interest rate = 4.75% now.