If you can join a sports club. Be it soccer, martial arts or whatever fits you needs. You learn more and meet new people. If you need more workout you can go running or do body weight exercices.
You also don't need any machines. Body weight exercices should be more than enough. Push-ups and chins can go a long way.
Sports Club are not for everyone. I've been through a lot (tennis, soccer, volley, badminton, ping pong (competition), fencing, taekwondo, judo, kungfu, karate, climbing...) and I never really enjoyed it fully.
I figured it was because I didn't like having a teacher in some case (I hate having to follow directions) and also I didn't like the mentality of some sports (soccer, if you suck people will just hate you).
Going to the gym is one of the thing I really like in my life right now. It's like quitting life for an hour. I don't have anyone to talk to or to follow, I can do sport on my own, by myself. It's refreshing.
If you're reading it for entertainment, maybe. Otherwise it'll just turn you into a bitter, self-absorbed, selfish asshole like the rest of the objectivists.
Second the join-a-club notion. Having something else except "exercise is good for me", like winning a match, to motivate yourself goes a long way. I started playing rugby last year and find myself actually looking forward to regular practice.
You also don't need any machines. Body weight exercices should be more than enough. Push-ups and chins can go a long way.