In reply to trekclimb:
The route is pretty well protected (as far as routes on the Marmolada South face go) so a light ish standard rack, you don't need pegs.
The crux is on pitch 20. You can either take a strenuous but very well protected crack (recommended way) or go around the wall to the left with easier (HVS ish) climbing but with few opportunities for gear.
You can move together for the majority of the first half which will speed things up. Expect the route to take 6-10 hours if you've not done it before. The aim is to get the last cable car down at 4pm.
Have a study of the route from the valley floor the previous night, and find the start if you get chance.
Most importantly enjoy! It's a great route, particularly in the upper half. If you're feeling keen in my opinion it's best to do the first half of Schwalbenschwanz up to the great terrace. Then finish up Don Quixote. Then you get the best two halves of each route.