if I were you, I'd seriously consider checking out "Spin Rewriter" before making any purchases...
affiliate link (& discount)..
http://www.spinrewriter.com/?ref=5916
..non affiliate link (no discount)..
http://www.spinrewriter.com/
...not just giving to try and get comissions or something...seriously..check it out.. + recent update supports bulk uploads...
Wanted to ask a question before I decide whether or not to purchase this (on the 7 day trial right now)
For my tier 1 web 2.0 sites... is it ok if its 30-40% unique? I find it difficult to get anything higher without writing the whole article over again.
another questions... so once i get it to 30-40% I can just hit "new spin" and all those articles will be good to go for posting on web2.0 and article directories (assuming they wont get rejected)?