Suffolk is a down sheep. A fleece will weigh between 5-8 lbs. It is a medium wool (micron count of 25-33 / spinning count of 48-58). Staple length of 2"-3".
I have a few suffolk and suffolk cross fleeces in my stash. I like them for heavy duty outerwear like mittens, hats & socks since they don't felt so easily.
I have a few links on my spinning page
about scouring a raw fleece you might want to check out.
Have you spun from prepared fiber before?
I see you're in IL ... me too! South of Sterling/Rock Falls but north of Tampico (kind of the lower NW part of the state.)