Who you gonna call? Of course, this has to be one of the more classic things you can dress up as for Halloween. Especially since wejust found out that they're going to make a 3rd Ghsotbusters. The costume comes complete with the suit and an inflatable proton pack.
This costume could be a really easy DIY costume. Find some poplin coveralls: http://www.qcsupply.com/qcsupply/browse/productDetailWithPicker.jsp?productId=70090&categoryId=&fromPage=search Add a ghostbuster logos, create a backpack pack and accesorize. The same website that sells the coveralls also has affordable boots & goggles. Easy!