Just got back from the sussex myself and there wasn't much around. In the basin I know of a few fishos fishing the artifical reefs and not much to report there, plenty of tailor out there but were not biting. I fish around the mouth of the basin there is some nice spots around there. outgoing tide drift into the river and you might get a flatty (if it's a bit busy you can't really do that) I picked up a 50cm flatty in the river just outside the RSL club on the weekend and lost another bit smaller at the boat. I was using poddies but many have been getting flatties on SP.
Oh and watch out for the rays there seems to be many around but never hooked one (lucky me)
Aaron