you have got Odesk, Elance, Freelancer.com you can hire freelancers from all these websites who'll be able to write you good quality content at affordable rates. Just have them write a paid sample to gauge their strengths and weaknesses.

you can also hire outside such websites, but that always involves a risk. you don't know if the person can be trusted or not. By hiring from the websites above, you can see the feedback score of the freelancer and judge if he is worth your time and money or not.

Depends on what you mean by "affordable." Some people can only afford to pay $1 per article. Others, $500. I'll let you guess which one will yield better quality. As for PLR, yeah, good luck with that.

Pathetic
Lame
Regurgitated

Or, warriors for hire. This is a guy who's written good stuff for me...

http://www.warriorforum.com/warriors...s-convert.html