I guess Spectrum closed office in July and now Micro-cap 12 is freeware from their website.
We use Micro-cap at my work for circuit simulation and it's pretty solid. It has lots of components, features, is SPICE compatible, and not any harder then other spice programs available.
http://www.spectrum-soft.com/index.shtm
**Just realized I didn't put this in the Simulation section... Oops! Sorry! Please move!
> Please move!
More eyeballs here. I have quoted your announcement, with added links, in the Simulation section.