I know you like SSS ice-boy but what do you want for free? Even Poser doesn't have SSS and we all paid for that ;o). Anyway, Luxrender is a very young piece of software. They are working on SSS and GPU rendering. You can't expect lightening speed from anyone that programs for free (except these guys here - they're terriffic...lol) nor can you expect that any renderer is going to have everything in it that you might desire.

Laurie