Here's a link to the 3/4ths Hello Kitty by Janome:
http://www.overstock.com/Crafts-Sewing/Hello-Kitty-Janome-Sewing-Machine/4584360/product.html?cid=202290&kid=9553000357392&track=pspla&adtype=pla&kw={keyword}
The reviews are pretty good, and it's a real sewing machine -- not a toy. Check reviews on it at Overstock and probably Amazon has it too. (Target sells it as well.)