Need designer for postcard direct mail pieces

Looking for a graphic designer who has experience designing direct mail pieces for business to business lead generation. Must have experience in knowing what will sell, and what will not. What will cause the prospective customer to pick up the phone and call. We will be sending out 2500 postcards to our prospect list. We plan on sending out direct mail pieces each month. We need your postcard direct mail piece to spark an interest in our prospective customer so that they pick up the telephone and call us. This will be for selling consultative services, and a second related venture selling entertainment booking services. We will have ongoing mailings every month, so if you are good and can create direct mail pieces that get the phone ringing, this could work out nicely for us and for you. We want to see some samples that show us that you have a good feel for graphic design that will appeal to and work within the corporate markets. Show us that you understand business to business selling and how to get the phone ringing with a nice corporate look. Please -- no amateurs and no wannabe's. We need a professional. One very important note -- when finished the design(s), we will always want a multi-layered *.psd file. This way we can make minor changes ourselves later on. Some designers are not willing to give us a *.psd file that we can later edit ourselves in Photoshop. If this is your policy, please do not bid. Looking forward to working with you!