I could definitely be in for climbing at Seneca. I've never been there before, but I lead 5.8/5.9 at the Gunks, have my own gear, etc. I'm curious about places to stay/logistics, though, so any info on that would be helpful.
I got a couple of replies from some old partners so I think I'm good for this weekend.
For future info: In the summer I usually camp at Seneca Shadows campground (state forest run). It's like 5 min up the road from the crag. It is closed Dec-March though. It looks like this time of year the only pay camping is at Yokum's. It has sketchy cabins and tepees you can rent as well as some rooms and RV spots. Probably not the best for tent camping. Logistics are super easy since there is only one parking lot at Seneca and it's free to climb. Cell phones do not work there so make solid plans if you are meeting people.
I've also done a bit of backcountry camping along many of the trails in the area but you have to hike in/out so it's less continent for climbing. It's also quite easy to sleep in your car/van at various pullouts/trail heads along the river and elsewhere too.