I hesitate to suggest a device, because 9 out of 10 times, the poster will come back with either "this is not available where I live" or "it is too expensive" or "I can't solder surface mount devices".
Rather, what I suggest is that you go to the Texas Instruments, OnSemi, Fairchild websites and based on your parameter criteria, choose a device that is both available and within your budget.
You can then come back here and say: "hey! I found these three devices, which one would you recommend?" and we would gladly help you out to narrow your decision.