Here i am going disclose my scenario. I am in Uk since sept, 2004 and My current visa (Discretionary Leave Granted on HUMAN RIGHT BASE (ARTICLE-8) is going to finish in November,2013. So According to my knowledge i can extend my visa on same category as i have private life according to (Articel -

As long as i know i have to do FLR(O) application. But what other documents i can keep to support my application.
Does anyone have sample of LETTER OF SUPPORT FROM FREIND AND FAMILY?
I will be thankful if anyone can advice me on this.