Are you learning how to play drums or wanting to buy a set? Well, the drummer's most important trait is coordination, and without that drummers would have a difficult time learning how to move all four limbs at the same time. If your not sure if your coordinated there are a few simple tests you can do.
One that most kids do for fun its rubbing your stomach and patting your head at the same time and then switch hands. Another one geared for an inspired drummer would be try and imitate a basic drum beat at your computer desk. Count 1,2,3,4...1,2,3,4 and on each count tap the desk with your right hand, and on 2 tap with your left hand, then on 4 tap your foot. It may take just a moment to get this down but if your finding this difficult then drums might be a challenge for you.
Not all of us are cut out to be drummers but if your able to do that simple beat then you have potential to learn much more about the musical aspect of drums. Drums aren't cheap even a beginner drum set is quiet expensive for what it is. I would opt out of buying a beginner drum set as they are weak and most of them out there have sheet cymbals that are basically just trash can lids that look like cymbals and flip inside out. What should you do then? Well look for a used set on Craigs List or in the paper. Might even get a good deal that comes with real cast cymbals which plays a huge role in how much the set is worth.
If your on a budget and not sure you want to buy a drum set just yet get a drum pad or aka (practice pad). They are perfect for practicing your rudiments while trying to keep quiet, and the also are very portable so you could take it anywhere. Its almost become a standard for practice pads to come with two different sides. One side would be softer and quieter (Gum Rubber) than the other and give a nice bounce (Neoprene) while the other would be more of a speed pad as its harder and louder so you can hear each stroke very well. When planning out which one is best for you its recommended that its big enough to fit your lap about (10"-12").
Drum pads make life easy, and are great to practice with a metronome at odd hours of the night. Now when starting out in drumming or maybe you don't own a beginner drum set just yet. Its highly recommended to get one of these and a pair of sticks to begin your practice on a budget. They really are quiet cheap and even after you buy a set you'll still be using your drum pad.