I shouldn't have looked...but I did...at Amazon.com, the beckoning header that reads "If you like Abney Park, we recommend these..."
And there they were: a lovely selection of more steampunk bands that I, indeed, did sample and enjoy immensely.
So far, I've been a good and frugal girl and haven't actually bought any of them. I placed them on my wish list instead of in my shopping cart and felt very proud for having resisted kneejerk temptation. However, it's been only a couple days...and they are still there...whispering...singing...and flying their airships in the back of my mind.
In any case, here's what I found:
The Cog Is Dead
The Clockwork Dolls
Deadly Nightshade Botanical Society