For what it's worth, I'm a member of True Fitness (TF), mostly because it has branches that are convenient to me. The branches that I go to, Suntec, Chevron House, Great World City and Vivocity, have all the basics - Olympic bars and weights, sturdy benches for incline and flat benching, squat rack, smith machine etc. (Of course you'll get the usual half wits doing 20lb barbell curls in the squat racks too.) If you train at off peak times (9am to 12pm, 2pm to 5pm etc) you should have no problems getting access to whatever equipment you need. If you train during peak hours, you'll get a crash course in what appears to be a cultural lack of spatial awareness on the part of many Asians. Although TF has a number of serious training members who are competitive bodybuilders (as though most of the other chain gyms - California Fitness, Fitness First...), generally the membership is comprised of ordinary citizens who just want to get in shape. The personal trainers can be a little pushy for new business at times but I solved that problem by wearing headphones.
If you are prepared to venture further afield, there is an excellent, though very small gym at Cairnhill Community Centre called Fitness Force - it's owned and run by the current Mr. Singapore, Kevin Chiak and is the 'official gym' of the Singapore Bodybuilding Federation. Even further away from East Coast, there is a community centre gym in Woodlands that is home to a lot of Singapore strong man competitors.
"Both politicians and nappies need to be changed regularly, and for the same reasons."