A good personal home fitness solution is to create your very own gym within the comfort of your own home.
Take the same movement but bring the hands closer together (almost touching) the emphasise is now on the triceps, this is actually quite an effective mass builder exercise for the triceps which many professional bodybuilders use as part of there arm building routines.
Again to further illustrate how a grip adjustment can stimulate different parts of the same muscle let us look at the barbell curl - a popular exercise for developing the bicep. A wide grip will stimulate the short head whilst a narrower grip can target the long head.
Invest in a good sturdy one, there are plenty of choices available for the home gym and they are not too expensive.
This is really more of an optional extra and if you do decide to invest in a good quality power rack sometimes these have the pull up bar as part of the fixture. I personally think that this is a good piece of equipment to have as the pull up can be an excellant exercise for back and shoulder development (among others).
The pull up bar can exercise the abs as well, the hanging leg raise is an excellent abs / six pack developer!
Again this more of an optional extra as you can get a very good triceps dip routine by just using the edge of your bench but if you wanted to invest in one of these and you have the space there are some realtively inexpensive models on the market.
You can perform a whole range of exercises using a fitness ball. Apart from the fact that you can use it as an alternative to your bench (i.e using it to perform dumbell presses), it can help bring in you core muscles as you need to not only concentrate on the exercise performed but from remaining stable on the ball.
Not all of us want a highly developed muscular physique so investing in a good quality gym mat is probably all you are going to need (if you decide that a fitness ball is not for you). Using your own body weight, a good pilates or yoga routine is all you need. But the floor can be very uncomfortable and hard. A gym mat offers protection from the hard surface and also provides comfort.
It can usually be rolled up and stored away - so don't worry about forking out any money for the extras if you do not wish to become the next Mr or Mrs Olympia - fitness does not have to be expensive!
It may be worthwhile investing in a good heart rate monitor as well for your cardio so you can keep an eye on how well you have been doing over a period of time. Again these are not to expensive these days and provide an excellant way of keeping track on progress.
Although this may not be to everybody's needs and you can get a good pilates work out by just using mat work I find the reformer helps me by offering extra resistance whilst being able to train safely.
For me my intention is to strengthen the weak areas of my body before moving back to weight training which has always been my favourite method of exercise.
A reformer resembles a long bench at floor level which slides back and forth. It has a number of rubber bands, these create the tension, which are selectable. At one end it has a foot rest and the other it has two cables on pulleys.
A range of exercises can be achieved and can be relatively inexpensive as well (my model cost between £200 and £300). However this is not a must for your home gym, I thought I would just mention it to make you aware it is available for home use and not just restricted to gyms.
If you opt for a weights setup then concentrate on good compound exercises such as squats, bench press, shoulder press, lunges, deadlifts, romanian deadlifts etc as the foundation for your routine. Exercises such as the squat not only develop good quads but also strengthen your whole body.
For those who opt for body weight or a fitness ball use a program that exercises the whole body in order to make sure that no areas are missed and remains weak.