For some Chicago-style electric blues/jump blues with terrific slide guitar check out:
Lil' Ed and the Blues Imperials, "Roughousin'", "What You See is What You Get", "Jump Start".
A great band to see live as well. I've seen them three times and they are terrific. Lil' Ed learned his style from his uncle, J.B. Hutto. Or at least that is what he told me after he stole my seat the bar (The Music Box) one freezing late night in Cleveland.