It was the best of times for New Zealand, it was the worst of times for SA in the tale of two dropped catches that book-ended the second Twenty20 in Centurion yesterday and helped the Kiwis prevail by 32 runs. In the eighth over of the visitors' innings, David Miller sprinted from long-on and dived for all his worth but could not hang on to a chance offered by a heaving Martin Guptill off David Wiese.Guptill, who was 38 not out at the time, faced 13 more balls and in all clubbed 60 off 35 in an innings that ended in the 12th over when he clubbed a full toss from Farhaan Behardien to long-on. Miller again sprinted and dived - and this time he held on.AB de Villiers was on eight when he pulled viciously at a delivery from Jimmy Neesham. Tom Latham leapt high at short midwicket but spilt the catch.Six balls later De Villiers hammered Nathan McCullum hard and high down the ground - only for Neesham to take the catch cool as you like on the long-on fence.After Guptill's let-off, New Zealand scored 111 runs at 8.9 to the over on their way to a total of 177/7.De Villiers' near miss was the prelude to SA losing six wickets for 93 runs and dwindling to 145/8.Guptill and De Villiers are two of the most destructive batsmen in the game. If they come off, their teams tend to win. If they don't, opponents know their chances have improved exponentially.Yesterday's game was a case in point. Guptill, the only man in black to pass 30, featured in partnerships of 52 and 34, his team's biggest. De Villiers' 15 was part of stands of four and 28.SA's innings was an anti-climax after a bowling and fielding performance that bristled with the promise of a series-clinching victory...