Best $20-30 cpu cooler

i am looking for a really cheap cpu cooler until i can get enough for a 360 rad. should i get a cheap one now or use a stock cooler and get a 120 rad in like a month. or should i just get a cheap cooler now. because a 120 rad is only $50. any questions or suggestions are welcome. thanks

Just save your money and put it towards the radiator, no sense in wasting money unless you got money to blow and $30 is insignificant to you.  That's what I would do but it also depends what you are cooling, are you having terrible temps with the stock cooler then yes. If no, just save until you purchase the radiator you want.