New Computer For Christmas?

the 120 is the size of hard drive not memory youre sieze is 2GB shared dual chanel ddr2 120gb hard is a good size depending on how music and pics you are putting on it you can get a bigger hard drive if you want my hard drive is 320gb 7200rpm youres is 5400rpm i would use the 120gb for right now and see how much space you take up you can get a 320 or bigger later get a 7200rpm if you do