Digitizing software

I am a fairly new beginner at machine embroidery ( Dec.06) however, not to sewing, and quilting. I have a Singer Futura ce200.( Near Future machine will be a babylock) I would love to learn how to digitize mearly for the fact that I have a daughter ( 11 yrs) with extreme clip art abilites ( I have seen several sites that offer clip art and at her age her work looks just as good as theirs) and would love to learn how to digitize them. Is any one digitizing software better to learn from ? cost? Preferences anyone? Feel free to tell me what you think. I am also a huge fan of this site. Thanks in advance Wendi from MN