Sounds interesting, haven't really heard of it before. What's it like? I won't get shot at again in St Pauls will I?
In the day it's for kids, procession and the like. Good for a couple of hours to chill out and get some food. At night all the sound systems come out, reggae/ragga/hip-hop/garage/drum and bass, party in the streets, smoke weed and drink red stripe.
In the three years I went it got progressively more thuggish, gun shots and cs gas(you're very unlikely to get any trouble yourself though). Never bothered me then but I was younger and probably a bit more foolhardy. Don't expect it to be anything like that now anyway, smaller area and doesn't go on anywhere near as late I don't think. And it only ever got properly moody at about 3/4 in the morning to be honest.