Does anyone know where i could get a 'Boys Before Flowers' dvd?

Do you mean the Korean series or the Japanese one? You can buy the Korean series here: http://www.dvdonline.com.au

Join Jandi and the Boys of F4 as they learn the true meaning of friendship and love in the hit comedy sweeping across Asia. Jandi is a brave high school girl who fights for the rights of others no matter the cost. When she defends a friend against the elite Boys of F4 (Flower 4), they target Jandi as their next victim. But nothing stops Jandi. She fights back and wins the admiration of the extravagantly wealthy boys. In a comedy filled with entanglements and adventure, Jandi never stops helping others. And F4 never stops rescuing her! The Boys of F4 may be loyal to each other, but they all lose their hearts to Jandi.