Okay, being a soccer player myself I know that you won't be able to get any decent selection of soccer cleats from any of the places that other people have listed--those people unfortunetly don't realize how anti-soccer so many chain retailers remain. So you have to go to a soccer specific store or website. The best website is
http://www.soccer.com and then click on shop. I don't know if you have to register in order to purchase stuff from Eurosport (the gear company that has partnered with the site) but I will tell you I've ordered from Eurosport before and their service is very good if you have a legitimate complaint.
Oh and I already checked to see if they had the shoe your brother wanted (why he would ever want valsport though is beyond me
, but whatever) and they do have the white pair.