Assalamu alaykum
[GREAT I just typed a loooong one and it was deleted!]
Dear you can read up on names at this thread whereby I have cut + paste a fatwa regarding names -
click
I speak as a Muslimah, that wearing a single long garment people tend to go like "You're arab wannabe" when it's not the case, because I only feeling wearing as such is most efficient in breaking the body form and covering the awrah. So, it's not an issue of arabic or not, I spose the culture here where I reside ladies wearing "hijab" wear jeans, etc all the time, so wearing something proper like a long piece of garment abaya may appear "arabic". Would not know about the men though, perhaps a brother can answer this, but perhaps it is the sunnah of our beloved Prophet salallaahu 'alayhe wa sallaam and afterall, he IS an arab!
My dear, why to go along with the name Joseph, Mary, JESUS etc. why? The Qur'an clearly states "Yusuf", "Maryam" and it is a pure and original scripture of Allaah taela and not distorted and tainted like the bible whereby the Prophets seemingly have English names! On this too, perhaps someone may give a clearer explanation but for me personally, the Qur'an will suffice, and the names as give in the Qur'an are as such I will not change it