I have downloaded a theme named Fire some time ago. It was a good theme with good contrast and warm feeling. But it was not fully compatible with S60 3rd edition, so I decided to make a theme for my E70 and was inspired from Fire. So was created Inferno.
Here are two screenshots:
You can download the theme from this link: Inferno v1.0
By the way, this theme has been selected as a winner in Theme Contest 2006 from e61life.com with 2 other themes. You can find the theme contest page here.
Update: e61life.com is discontinued now, so the links towards that site are gone.