I am just manually downloading stuff from the Nexus site, looking it over, and then setting it up for enabling via JSGME. I'd rather know exactly what is being added and be able to remove it easily if there's a problem. It looks to me like getting a mod through Steam involves "subscribing" to it and then Steam is fiddling with your game automatically every time a new version of the mod is uploaded whether you want it or not. There are some great looking mods in the SW already but I want to control the downloading and enabling, so... thanks but no thanks.
Edit @ Duci: that's odd, I've never really had a problem getting mods off Nexus. Maybe once or twice I waited a few extra seconds for a download to start, but that's it.