Over the next couple days Office Max is having a sale on large size printing. $9.98 will get you a SWM sized image printed out, which strikes me as a pretty good deal. Details here:
http://www.officemax.com/catalog/custompages/2011/week21/ff_2011_fc_omx_com.pdfIt is limited to one per customer, but its still a lot better than the standard prize they charge (~$30).