Recommendations for textbooks on statistical and quantitative genetics, and genetic epidemiology
For statistical genetics, take a look at:

Likelihood, Bayesian, and MCMC Methods in Quantitative Genetics. Daniel 
Sorenson and Daniel Gianola. (2002. Springer). 


Warning: heavy on math (calculus). If that doesn't scare you, it's excellent guide to non-frequentist statistical methods applied to problems in genetics.