I was thinking of doing that as well maxinexus, but then i'd have to buy:
a new case or find a motherboard that fits my case, processor + fan, then new ram, a decent PCIE card and maybe a new OS right? im not experienced in moving around an hdd. also my sister is only 7 years old lol.
when she's older she'll probably get a laptop instead, unless she suprises the world and becomes a gamer.
A new setup for my gf has crossed my mind... or buy myself a new setup and give her what I have now lol.