if you want belgium chocs try godiva, theyre the worst of the best but 1 zillion times better then other stuff, besides the only ones you can get in the US on any corner of the street
be prepared to pay $80 for a box thats $10 here though... if you want something more exclusive see if you can get these
http://www.ovidias.com/ and stay away from leonidas only dutch tourists buy them lol way too creamy cant keep them more then 10 days and theyre yukky