(i am not the right person to advise u but still i am expressing my opinions)... There are 3 choices for you..
1. My opinion is that now that your articleship is over sit in home & concentrate on studies for next 1 yr... Suppose if u don't clear this attempt, make sure that u clear PCC in May 12. Immediately after May 12 start studying for Final.. Since you will be in home for full time if u concentrate fully you can finish final in Nov itself
2. Financially if you are not comfortable and is in need of a job means then go for employment after completing PCC in May 12. Once you clear PCC you can get better employment opportunities.. I have seen some small CA firms giving 10K pm if you have B Com degree & CA PCC & also have completed articleship
3. If in the current CA firm they are giving you proper study leave, hike & everything you can continue there
Going for employment in some companies or pvt concern is not advisable because many don't give leave even for exams...