I assume the OP is in this country on F1 student visa?
If yes, then the OP is
NOT eligible for any work outside his/her campus. I was in F1 visa as well until recently... (Finally got my H1B work visa).
I worked as Teaching Assistant for one of my professor and I've worked at the school dining hall as well.... Sad to say these places usually pay very little (minimum wage). I am quite sure 7 dollars per hour
part time job won't be enough to purchase iPad/iPhone + Paying for service plan. I continued with my TA employment but quickly stopped working for the dining hall. I love trading stocks and this is precisely what I did to supplement my allowance during college... Oh and selling Nintendo Wii on eBay used to be good too but queueing up at 5am in the morning is taking its toll
Some people here suggested to take up job outside the campus and yeah that's great and all except if they found out about it, your F1 visa will be revoked and you'll be deported. I advise strongly against this... especially if you're on F1 visa because well... it's stupid to take the risk of deportation so you can purchase gadget, heh
I'm not sure about you, OP but when I was in college, my parents send me a lump sum for 6 months allowance and rent (usually coincide with my semester tuition fees) and it is up to me to manage those allowances. If I spent them all in 1 month, well I'm SoL... However, the good thing about this is that I can manage the money... I also made 1 (ONLY 1) Credit Card to help me manage my money better...
Don't forget, if you're getting new gadget, sell off the old one!!!! I sold my Nexus One for $450 before purchasing my iPhone 4. This is a mere $80 reduction from the price I paid Google for the phone. $80 depreciation for 6 months use is not that bad for a phone.
Again, I'm not sure how you manage your money but I was able to use iPhone (and other gadgets) back then
Without lying!!!!