i would suggest a 5 piece w/ bass, snare, 2 toms, and floor tom. also a high-hat and ride/crash. start small. then after a while add some more cymbols. you want quality but some sets can be expensive, so i would suggest a "no-name" brand. but make sure that you are not buying junk! if you can bend the cymbols w/ your bare hands then replace them
check ebay for low prices.