Just spied this. Best of luck with it man (BTW you won the review, I don't think you noticed yet)
I was about to leave my 2 cents, I scrolled down then and seen wowhaxor got there already. Even back when I wrote that original thread, well over a year ago now.. those properties you're testing on were no good for this. The best properties I found were forums, forums on sites with heaps of authority. A lot of these forums would be laying dormant too, not used much, hard to find even from the main page.. ripe for the picking.
Hunting down and finding the perfect properties became 90% of the battle for me. Forums always came up tops.
Edit: An example of a site like this I used a lot back then..
http://www.boston.com - It's hard to find their forum from the main site. This is a PR 7, DA/PA 92 site.
Their forum has likely been raped to shit now, it was bad when I stopped using it. It worked EXTREMELY well for a long time. Competitors started reporting each other on the forum in the end, Mods would delete posts.. I had some properties ranking with content no longer in them. This is a good example for you though of the type of property I'm talking about.