I am looking to see what other people use for software circuit simulation.

I am still using the free LTSpice download from Linear Technologies, and it works well enough for me for now except for all chips modelled being Linear Tech products.

I have been out of electronics for a few years doing other things so my point of reference was an old version of Electronics Workbench which I couldn't find and am not sure would work with my current OS if I did find it. Things have moved on a ways from the days of the 486 processor.

I have to think there will be all kinds of options and stopping at the first software I find could mean I am missing something.

 

There is a very active YahooGroup for LTSpice.

There are MANY models available there. I mean a lot.

Its what I use.

 

Yep, you really need to join the Yahoo! LTSpice group.

New models are being added all the time.

LTSpice doesn't handle IBIS models (that I've been able to find so far) so that's one down-side to it. However, it's really quite good for analog simulation.