before you go down the route of gym equipment and the cost associated you may want to consider a skipping rope (if you're not too knackered already
) and just learning how to do body weight exercises like burpees and such. i work away most of the time and gyms are not always available and when they are they are normally pretty poor so i do 200 skips and 20burpees followed by 190 skips and 19 burpees, all the way through 180-18, 170-17 to 10skip and 1burpee. take me around 50min but you may want to start lower at around the 100 and 10 mark and see from there. i promise you will be a lot fitter in no time and if you eat right you will be in great shape too or it will kill you
kettle bells are great too, metabolism goes through the roof and with the right protein diet you can change your body shape pretty quick and there is loads of info on the net for beginner work outs.
good luck in your endeavors mate