I am pretty optimistic of India's chances in SA this time. Sehwag and Gambhir can bat in tough conditions, and our trio of Dravid/Tendulkar/Laxman need no scrutiny. Its Raina and Dhoni who will be severely tested in SA as far as batting is concerned.
Our bowlers should enjoy the life in the pitches of SA. Ishant has shown that he can be a handful if the pitch offers life. If Zaheer is fit for that tour and if Sree also joins in, we have a pretty good pace attack for the test matches. We should also take Abhimanyu Mithun whose type of bowling (hit the deck kind of bowler) will suit the pitches of SA. Ojha and Harbhajan should be enough for the spin (no need to take Mishra on tour). Hope we have enough warmup games before the real test starts.
Team
V Sehwag, G Gambhir, R Dravid, S Tendulkar, VVS Laxman, S Raina, C Pujara, MS Dhoni, H Singh, I Pathan, P Ojha, Z Khan, A Mithun, I Sharma, S Sreesanth