Full capability for the 'Fast and Light' crowd is available, which will give very good safety margins in poor weather conditions. Ditching your pack for the final ascent was a very poor decision, which almost cost this climber his life.

For example;

Terra Nova Quasar 30 Pack - 590 grams
NeoAir™ All Season ground pad - 510 grams
Terra Nova Laser Ultra 1 Tent - 590 grams
PHD Minim Ultra Down Sleeping Bag - 670 grams -5°C (23°F)
Jet Boil Sol Titanium Stove - 240 grams
100 gram Butane/Propane gas Cartridge - 160 grams

Total - 2760 grams = 6lbs base pack weight.

You will need a fat heavy Wallet though!