Agree with Bagath fully about the team composition. When Cameron White comes in, we have to leave out Boucher, no other option. When Smith comes in, he should play in place of VD Merwe.
But the batting order should be slightly altered to have either Dravid or Kallis on one end right from beginning and on the other end we should have the strikers Pandey, Kohli, Morgan and Uthappa keeping on top of the bowlers. So the order should be flexible on this strategy only. Mithun is a good pace bowler no doubt, he is the perfect bowler for test matches, but good pace bowlers are not always respected in T20 format - they can be packed to the laundry in no time.
We must make use of Kohli and Uthappa for their medium pacers and get a total of 4 overs from them. This will ease pressure on Kallis because I dont think Kallis or Steyn’s bowling will ever be successful. See how Sachin used our own R. Sathish to great effect in the MI vs RR match (even though Yousuf Pathan was killing all bowlers that night).