arabic language is very important if you want to be a student of knowledge. the best book to start with is the madinah arabic book series. it is a good book which helps the non arabic speakers to learn the arabic language.
and while i am talking about this i just want to remind that there are some brothers when they want to emphasize the importance of the arabic language they often say that it is the language of the Jannah... Sheikhul Islaam ibnul Qayyim said in his poem al kaafiyyah ash shaafiyyah aka his Nooniyyah that it is da3eef in the part where he talks about the describtion of jannah.
anyway this link below should be able to help with the madinah arabic. they also have videos teaching the language
i would recommend after studying book one and two, to go straight to Aajuroomiyyah and leave book three.
the best sharh for this is the sharh of sheikh ibn 3uthaymeen and the famous book called tu7fatus saniyyah. there is this explanation simple for the beginners
download link: http://saaid.net/book/12/4715.rar