Two series I have immensely enjoyed were the Europa series by first GDW, and then later, GRD. Never play them anymore. The other was The Gamer's Operational Campaigns Series. Never play them either but I still have them.
Kindel, I also played a lot of SL, but not ASL. Also played some Gunslinger. THAT was a great game. There is an electronic version somewhere, that is very true graphically to the original. I just cant remember who had it. I dont think it was ADC. Maybe a google will reveal it.
OK...here is the url....
http://cryhavocgames.net/Gunslinger.htm. This is a module for an Aide de Camp style electronic board gaming software. There is also a mod here for another program of this genre called Vassal. This looks very good and I had both versions on an older computer