I'm sure that 6 oz (or so) of any SF chocolate that you like would work as long as it will melt.

I got the Russell Stover chips at Super Wal*Mart. They've been carrying them for several months but they were marked WAY down and in a different section when I went the other day. That seems to be the death knell for LC products so I bought 5 bags of them! They do have maltitol but it doesn't seem to bother me. I love 'em and use them sometimes in a ricotta dessert I really enjoy. I'm sure that recipe is here somewhere, too. If not, I'll post it.