I just got a call about doing Kindergarten and 1st grade basketball portraits. Is there a company that does the printing/packaging/mailing/ordering/etc? I'd like to find a good setup so I can get into this type of thing more often.
Its a nightmare, but have fun anyway. I have used http://www.groupphotographers.com/dirproducts/products_main.html they'll have everythingyou need. They will even do all the mailing for if you like.
Really most pro labs can and do handle things like this. I know these guys http://www.bayphoto.com/bayweb/pro_sports.htm advertise in Rangefinder alot but if you do a search for sports photo lab you should find something.