I would like to go beyond the general text books and get some in depth insights into methods that I might select or reject when I come to define my study.
From a qualitative perspective I have always used Grounded theory methodology from Strauss and Corbin (1998) Basics of Qualitative research. GT is used extensively in psychology. This can be complicated but I have attached a paper from Hutchinson et al, that 'simplifies' the process. I have always used grounded theory as it stands up in medicine due to the robust data analysis techniques. I have attached a copy of one of my papers that demonstrates my application of GT methodology.
Dear Kisane, it is difficult to recommend a publication that provides a comprehensive overview yet at the same time goes into some depth on one or more methods.
A qualitatively oriented method whose general principles have often been used in psychology (INUS causation, necessary and sufficient causation), but which has never actually been employed in this area itself is Qualitative Comparative Analysis (QCA). QCA is already well-established in business, management, political science, and sociology, but is also currently making inroads into environmental science and public health, for instance. The hallmark of QCA is that it combines formal analytical rigor based on Boolean algebra with case-based evidence in uncovering complex patterns of causal relations.
I have been working intensively on this method for several years now (http://www.alrik-thiem.net). The link to a general introduction and tutorial that I have just published in the American Journal of Evaluation is provided below.
Maybe the application of QCA is an option for your specific research project. You would surely be one of the first researchers to draw on this method in psychology.