Or you could cough up $395/yr to get Priority Pass...and get access to 450 lounges around the world regardless of what airline/class of service you travel...
I have it and it is an excellent option... go to
prioritypass.com
in Singapore you can access the following: RAINFOREST BY SATS
in EWR: Terminal A, B and C -- Delta, Continental, Northwest and United
Not a bad deal if you ask me...