BUsiness card / Post Card business design

I currently have a logo and the web site is under development but want to get a move on finalizing the business card and marketing post card design/text. I want to have 2 different design options for each and will only pay if I select the designs. I reserve the right to reject the design until I like it. You will then provide the electronic copies which will allow printing. Once bidding I will provide logo details and site as well as other sites as examples for competitors. I also need to know how quickly you can provide the designs once bid is selected. Thanks