here is a link to a site with 5 really cool boogie pieces.
there is only sheet music for one of them but i think it's the best one and you can hear it in slo mo as well if that helps.
i tried learning it recently and im on grade 5 but i couldnt do it straight away so i gave up half way through the intro but maybe you lot can give it a go, see what you think.
if you know of any other good boogie pieces (or any other pieces for that matter) then please let me know, i'm getting tired of the things i know and i'm finding it hard to find new, decent things to play.
sorry the link didn't work, here it is the url www.aranuiarts.co.nz/bw.htm