Honestly my brother, you are not alone in the race. i bought the idea of pgd a long time ago and it worked. your best bet is the pgd. Yes some overseas school do allow 3rd class but you must be able to convince them that you have what it takes to run the program, which obviously you grade will in doing. dont be surprised if your alma mater turns you down. Yes it is happening , PLEASE BE FOCUSED. u remember what led you to this? go ahead and shame the devil. You have what it takes to excel right there in you. Finally, The earlier the better you remedy this before it becomes your nightmare.