At 1 house we drilled a couple of holes in the overhead beams in the basement, then just slid a pipe into them.
At another house I hung some rope over the beams supporting the back porch and tied them to a pipe.
Now though, I'm in an apartment and don't think I can do any major remodeling. So I'm thinking about getting this:
WEIDER VKR STATION
I was in the store yesterday and checked it out for a few minutes. It was a little wobbly at the base, but I think it was just how they had the bolts tightened. For $80 it's not bad.
They also had one of these:
Sports Authority - Proform 21.1 T Assisted Power Tower
It was $180 but currently 30% off, so about $130 total.
Can anyone see a reason why it's worth paying $50 more for the assisted station? I bet that I could attach a band to the standard station and get the same assisted movements if I wanted them.