It is well documented that more people join a gym and start a new exercise regime in January than at any other time of the year. In most cases, this particular New Year's resolution gets discarded come February. Busy lifestyles make it difficult to find the time to work out.

But if you have a gym at home, there are no excuses. Not only is there no travel involved and no waiting for machines, the ultimate luxury of a gym at home is the privacy, convenience and the fact it is open 24 hours a day.

Home gyms are the ultimate accessory for fitness enthusiasts and while they may not be at the top of buyers' wish lists, they're certainly regarded as a bonus. Here are six of the best examples currently on the market.