Hello and thanks for taking the time to read this post.
It's important that I inform you that I am not a bodybuilder and have no intention or desire to gain buckets of mass; I have great respect for the discipline and hard work that people who follow that path have/put in but I am just a regular and keen gym user, I enjoy looking lean/trim/healthy and there are certain connotations/associations that come with being huge that wouldn't be advantageous with respect to what I do in my working life.

So, I am looking to get in shape for the summer over the next 16 weeks or so. I have been in this situation many times before and have experienced some success in achieving this as a regular gym user: cardio, weights, diet; it's not that difficult to achieve with a bit of organisation and determination. However, I am now 33 and physically, my body is deteriorating; I can feel it, I am starting to get old and I'm not the specimen that I once was. I am stiff in the mornings (no laughing at the back.....), no longer as quick as I was, unable to recover from physical events as quickly and in all truth I am dreading putting my body through an intensive period of physical and dietary stress. What's more, over the past year or so, I have not been as active as I should have been although I have not blown up in weight as my diet has been pretty good in terms of calories consumed and I have taken off a few pounds over recent weeks with regimented dieting and not too much exercise.

With this in mind, I have considered whether or not it would be worth my while taking something to aid my repair and recovery and I have decided to follow this course of action. I have looked through previous posts etc but can't seem to find anybody in my exact situation which is:

Maintain my lean mass or even add a couple of pounds of it (no catabolism of muscle etc...)
Lose bodyfat (I know that steroids won't help to oxidise lipids but maintaining my lean mass will maintain a high metabolic rate...)
Perform plenty of cardio work (I need to repair and recover as quickly as possible in order to do this...)

Also, recommendations on: which substance(s) to use or a particular course to follow for something more 'therapeutic'? And, what concentrations/amounts/doses should I take.

I have not used before but am willing to administer orally and inject. I have considered an Anavar or Winstrol only cycle as these are the standard cutting steroids but adding some form of testosterone would seem like an appropriate action too given the hormone's natural inclination for protein synthesis and repair/recovery, however, I am not sure about the concentrations/amounts that I would need to take for a therapeutic cycle.

I appreciate that some will believe that this course of action is not necessary for me and maybe it isn't but still, I would prefer to take advantage of the pharmacological products that are available in order to make the process easier and better. Also, I'm an open-minded guy that would like to experience the effects of AAS first hand; I don't believe that these chemicals are the bogeyman that certain sections of society purport them to be. I do believe that in the future these products will be viewed with less cynicism and used on a much greater scale; Doctors wouldn't give them to kids and the dying if they were all that bad.......and so many women wouldn't be given the pill, too...

Thank you in advance for your input.