Brother, let me tell you I'm also done with my ACCA and B.com, 2014 will be my first CE attempt. I suggest you to choose Accounting worth 200 Marks, it is almost same ad F5 Cost Accounting, and F7 Reporting, and the second you must choose is Mercantile Law, almost the same of F4 Corporate Law, along with these two, you should also pick Indo Pak History, and Journalism or any of 4 Languages. You are now done with your 600 marks optional subjects. Best of Luck !