just how much muscle are you looking to build? 10, 20 pounds? less?
the goal of ‘toning up’ can be accomplisehd without a gym membership. do pushups and situps a few times a week, jog on the other days. cut out any junk food, clean up your diet in general. that will ‘tone you up’. hell, playing basketball a few times a week would probably tone you up pretty good.
dont waste your time or money on a gym membership unless you plan an something of an intensive regiment. deadlifts, squats, benchpresses, dozens of machines, tons of free weights and power racks arent for people looking to ‘tone up’ they are for people looking to build a lot of mass.
if you’re looking for a real muscle building routine, there are dozens already on this site that would be a good starting point.