I've been playing a bit more delta blues style slide guitar and I've realized I want some fingerpicks. The problem is I don't know anything about them. I know there's metal and there's plastic. Dunlop makes some. I'm going to be finger picking steel strings mostly on my cigar box guitar and my Strat. I'm not sure if metal picks are going to soung right or not.

What do you guys have or prefer? You can type billyauman on Youtube to see some of my slide videos. Don't mind the crappy video quality or anything.