This was back in 1998 but I bought a gang of things for my sands, my former boyfriend and me for our Greek Anniversaries from
www.stepshow.com
I received everything I ordered in correct sizes and I still wear all of my things.
I had no probs what so ever.
http://www.thegreekshop.com is also wonderful. A few associates have ordered from there.
www.meetgreeks.com has a plethora of Greek Paraphernalia websites as well as
www.greekstreet.com