Just a random question... is there going to be more themes coming or whats there is whats there? And is it possible to use smf themes or no?
There should be themes in works, just keep your eyes open for new ones when they are posted, and unfortunately SMF themes are no compatible.
May not be that much for now but theming or modifying a theme should be easy. You can also get help theming your EA or modifying a theme in here for free. Or you can hire one.
In Elk you can achieve fantastic results really easily without doing "full" themes.
The first is theme variants. You can put _variant directories in a theme.
But even more selectively, you can use theme/_variant/custom_variant.css
Of course that's all depending on your desires. But when you get right down to it, I think a great many themes can be reduced to basically just that. :)