I'm hoping to be out over Easter too. Sunday morning looks promising - might have to do a mega-early start to get the best of the weather though. Chasing the plaice and will also test out my new slow jigging gear over Boulder Bank I reckon.
I get my squid from my local tackle shop in Berkshire who, amazingly, keeps packets of dirty squid in stock despite being many miles from the sea. For worm you could try Dave's Tackle (http://www.davestackle.co.uk/) in Gosport. Not used him yet but he's local to my marina, so I'll be giving him a try shortly.