I don't like the Bodysolid type of rack. With solid steel safeties, if you dump a weight the rack is still ok, even if the pins get bent you can always hammer them out straight or just get new ones cheap. The fancy-shmancy Bodysolid kind will likely be hosed if you dump a big weight in it; the sliding safeties won't work properly anymore and I doubt they're cheap to replace.
The Powerline looks okay, price is good but the pin spacing is too wide (you could fix that yourself with a bit of drilling if necessary.) It's also a bit narrow which might be an issue if you plan on squatting wide stance or sumo DLing in the rack.
I say go with the Powertec -- cheaper than the Bodysolid, much tougher, decent pin spacing, nice chinup bar, comes with the dip bars that cost extra on the Bodysolid, and it's a few inches wider than the Powerline.