I still think the analytical chapters in Fairclough 1989 and Fowler 1991 are the best "guides" to doing CDA. You have to update the theory a bit of course, but they offer a good set of language-tool to help you identify what the discourse is doing.

The classics:

Fairclough, N. (1989). Language and Power. London: Longman.

Fowler, R. (1991). Language in the News: Discourse and ideology in the press. London: Routledge and Kegan Paul.

and

Fairclough, N. (2007). Analysing Discourse: Textual analysis for social research. London: Routledge.

Richardson, J. E. (2006). Analysing Newspapers: An Approach from Critical Discourse Analysis. Basingstoke: Palgrave Macmillan.

A question back, though, if I may: "directly effects"? I think CDA would avoid asking the question like this. There is a lovely paper on how homeless people "use", "engage with", "are subjectified by" and "represent and characterize themselves" in light of the media discourse around them.

Hodgetts, D., Hodgetts, A., & Radley, A. (2006). Life in the Shadow of the Media: Imaging Street Homelessness. European Journal of Cultural Studies, 9(4), 497-516.

Huckin (2004) gives a easy-to-follow steps in the procedure. Just google it...

Thanks so much for both of your suggestions! Re: the "directly effects" - definitely a spelling mistake - should have been affects...

I appreciate you keeping on my toes, Felicitas - frankly a poignant oversight on my part.

I'll need to find a word that represents the dialectical relationship between the individual and the media discourses.... Perhaps: "From this I aim to learn how the discourse, or lack thereof, intersects the everyday lives of local male sex workers."

I do like "intersects"! (...and for me that goes even further than dialectical, and flags up some sort of "messy" multi-dimensional relationship)

"Critical Discourse Analysis: History, Agenda, Theory, and Methodology", by Ruth Wodak and Michael Meyer (2008); Fairclough (1989) and Fowler (1991)--I agree 

Wodak, Ruth & Michael Meyer (eds) (2009) Methods of Critical Discourse Analysis, London: Sage.

my personal favorite :)

Try: Critical Discourse Analysis ...Teun A van Dijk (2004). From text grammar to critical discourse analysis.

Fairclough; JP Gee; Wodak & Meyer (as suggested above);  and more van Dijk