I'm copying Ryan again. (Help needed)

[Big Flannel]

I really want to improve my lead playing. I've never been speedy and I'm pretty much stuck in a pentatonic mindset. I've tried breaching out into other scales but I don't really know how to apply them based on a chord pattern. I can put together decent riffs, but after I write them I don't know how to go about playing complementary lead guitar.

What would you recommend for a blues guy that is wanting to improve his speed and accuracy while learning more rock and metal oriented voicings?

Formula73 compared my playing style to Billy Duffy from the Cult at one point so hopefully that provides some insight into my current skill set (or lack thereof).

Thanks guys.