I want to run a PPC campaign but i need see what poeple think the best amount of money is to get over 500 uniques a day i don't want to spend too much.
it depends on what field you are targeting as some areas PPC can be as cheap as a few cents a click or as high as a few dollars.
Advertising spend should be dictated by average profit... If you are making $5 profit on most sales, then a very low PPC would be recommended but if you ar making $100 per sale then a much higher PPC spend is waranted.
Budget depends on your willingness to spend and donnt expect any quick returns as well. Fix a budget, run the campaign for atleast 2 months and than analyze whether to go ahead and increase budget or stop.