I will also add my index of supporting documents here just incase it may help. Im sure its not perfect, we had no professional help...

1) Applicants Information:
 A: Applicants letter of introduction
 B: Passport and two colour passport-sized photos
 C: Original Birth Certificate
 D: Biometrics Confirmation
 E: Work /Educational history / Evidence of Employability
 Ea: Curriculum Vitae and teachers qualifications
 Eb: Most recent employment contract
 Ec: Letters of recommendation from former employer
 Ed: Emails from prospective employer in UK with job interview offer
 F: Proposed flight itinerary for travel to UK in September 2012
 G: IELTS Certificate for compliance with the English language requirement
 H: Certificate of joint account confirmation
 I: Criminal record certificate
 J: Copies of Cenomar. Eligibility for marriage
2) Sponsors Information:
 A: Sponsors letter of introduction
 B: Certified copies of passports Bio Page and visa stamps
 C: Financial Information:
 Ca: Current account bank statements for the previous six months +
 Cb: Business account statements from the previous 6 months +
 Cc: Bank letter confirming amounts in all accounts including savings and Cash ISA account statements
 Cd: Accountants letter confirming current yearly earnings and projected earnings for next year/Online tax return form
 Ce: Budget for living costs after arrival to UK
 Cf: Bank statements provided in my absence and screenshots of internet banking
 D: Evidence of accommodation in UK:
 Da: House deeds showing ownership and land registry details / Utility bill
 Db: Recent mortgage statement including payment alterations and amendments
 E: Sponsorship undertaking form
 F: Copies of CNI / Cenomar. Eligibility for marriage
3) Applicant - Sponsor Relationship
 A: Original and certified copy of our marriage licence
 B: Photo's from our wedding and honeymoon
 C: Other proof of wedding arrangements, bookings, invitations, receipts ect
P.T.O
4) Additional proof of relationship
 A: Flight details from visits. Including family of sponsor's attendance.
 B: Photos of time spent together
 C: Skype video call logs
 D: Facebook messages log
 E: Yahoo email logs
 F: Viber logs of messaging and calls
 G: Receipts from hotel reservations/accommodation