hi my parents just bought me an Ipod touch cause i was begging for one for months this is what i did
1.i made a list of why i needed it ex.i play soccer so i need to listen to my own good music to get pumped before game
2.i had a $50 gift card to best-buy which made my dad happy cause i paid for part of it
3.do chores for your parents...keep your room clean simple stuff like this will show your parents that your responsible to keep an Ipod touch
4.if your that desperate and your parents wont budge for anything else ask for it for your b-day or Christmas and say that is the only thing i want
5.If your parents are really strict I wouldn't recommend reminding them about the Ipod or it will make everything you did for them worthless (trust me I want one too for Christmas and because I get good grades and am donating my DS to my sisters im getting it!)
HOPE YOU GET IT TOO!