Hi Zply, just saw your question! I have some ideas for you. St.Gregory Spa & Fitness at Novena Square is now doing a special promotion....$1,200 per year (including membership and monthly subscription, etc.) their membership was used to be $2,200, but now waived! I think their business is quiet so have to cut down a bit to attract more customers. take a look at their
http://www.stgregoryspa.com
Or, you can have a look at Philip Wain at United Square (Novena again

coz I'm staying at Novena area...went to both before!) they're having a promotion at $1,800 per year (including everything also) and then $1,000 is your rebate....you can use this $1,000 to offset their facial, massage or any other treatment. You can consider only $800 for one year memebership.
Hope it helps!