I started at 33 with a wife child and mortgage. I did the integrated course because as people have already stated, the clock was ticking...
It took me 15 months to get through the course and I was lucky enough to get a jet job pretty much immediatly after finishing. I am now 36 and have close on 1500 hrs and the best job I had ever had.
At 33 you are not too old but dont hang about!! I would do the integrated route if you can afford it since it is quicker and you will be younger when you reach the job market. Another reason is that like it or not airlines prefer the integrated to modular student, right or wrong it is a fact.
If you do a search under my name you will find the story of my training etc
Good luck to you....