251 for 3 (32.5 overs)
A generally decent rule of thumb is to double the score after 30 overs if you've got wickets in hand, which'd put it at around 450 I think. Can't see it being THAT high, although with Sehwag still around and Murali nearly bowled out...
The record's what, 421? Australia got 418 and the saffers beat it with a 4 or something didn't they?