'wheelset'

Campagnolo Zonda 2-way fit wheelset in silver, campagnolo centaur 12-25 cassette, Schwalbe Ultremo zx 700x23 tyres.
I bought the wheels as a spare set as I usually have my Mavic Carbon cosmic's on and ride in Arizona so the wheels have been rarely used and are in as new condition. I cannot justify having two sets of wheels anymore.

£375ono

The new CycleOps PowerTap G3 alloy wheelset is a great choice if you've decided you want to train with power. The new G3 hub is lighter than the previous version and builds into a stiffer wheel and the complete wheelset is a competent and solid training option.

Advice or general thoughts please.

Looking for a good all-round wheelset for up to £400, but preferably less.

They're to go on a pretty lightweight build, so I'd like to keep shaving off grams if possible. I'm about 70kg so shouldn't have too many problems with lighter and more delicate wheels.

I've been pondering a few wheels:
Campagnolo Zonda
Mavic Krysium Elite (a smidge over budget but oh so tempting)
Fulcrum Racing 3
Shimano Ultegra 6700

I've got Pro-Lite Bracchianos on my other bike, so they're out for this one.