In reply to dsgarner: If possible definitely take a spare belay plate, you don't and you'll need it, sods law. On a similar note, some paper or camera to save dropping your guide book, they can be slippery too! Plenty of slings or tat/cord for ab's, 7m of 6/7mm should suffice for most boulders.
An Ab rope will help reduce the mental commitment as on any sea cliff. In case you're leaving an ab with anything other than convenience for access, then understand how to self rescue. A measured pair of prussic will make life a lot easier.
I'd also take a black bin bag, I was tipped to stash the bags at various points. Saves a bit of lugging and you can get to the pub quicker. Again when I went it was nesting season, very quiet, yes lots of crags closed, but lots open and more than a weeks worth at VS alone.
Enjoy it!