On Thursday, <A HREF="http://news.zdnet.com/2100-1040_22-5622772.html?tag=zdnn.alert">Samsung unveiled six new portable MP3 players</A> aimed at helping it triple sales this year. The six new models are expected to be released in the first half of the year. The upcoming models range from one with 256MB of flash memory to one with a 30GB hard drive capable of holding about 7,500 songs. Samsung and big Asian brands Sony and Creative Technology, as well as PC heavyweights Dell and Gateway, have their sights set on Apple Computer's juicy market position.