Qualifications are on the Sandhurst website or any good AFCO.
Get in and prove yourself - if you need quals you do not have, get them in your own time. And when you are ready give it a try - though you will get no preferential treatment - in fact you must/ should do better than the rest.
If you are up for the challenge then do you home work on joining and the qualifications you need. If you are still in education don't waste this time now!
People have comissioned having joined as a private soldier - but its not all cocktail parties and horse trials - it can be bl**dy hard graft.
Either way good luck whatever you decide
P.S Personally I waited 20 years and commissioned from the ranks it was a lot easier than RMAS for a year
The educational entry standard for officer candidates is set to change from 1 Sep 06. From this date all new candidates, ie all those submitting a PAOIF, will require 180 UCAS Tariff points at AS/A level (or equivalent), which must include 2 A levels (or equivalent) at minimum grade E.
In addition all candidates will require a minimum of 35 ALIS points at GCSE or 34 ALIS points at Scottish Standard Grades (or equivalent) where:
A* = 8 points
A = 7
B = 6
C = 5
SCE Standard Grades
1 = 7 points
2 = 6
3 = 5
Candidates will still require at least GCSE grade C (or equivalent) in English language, mathematics and either a science of foreign language