In reply to SFrancis:
Pwll Du will probably still be covered in mud so I wouldn't bother, it's a long walk in so don't think it will be worth going to have a look if your only around for a few days.
Shipwreck could go either way depending on how much rain there is this week.
Southgate area (Foxhole, watch house, Bowen etc.) and Barland should be dry.
If you go to Barland remember, don't park on the gravel bit outside the quarry or the guy who manages it will see you car and ask you to move on, ,I park at the pub (and buy a pint when finished)
I find the the trad crags dry quicker so it may be worth taking gear.
Not sure if you know about this:
http://www.southwalesmountaineering.org.uk/wiki/Gower
But it could be useful.