[tMcGrath]

For statistics I can really recommend 'All of Statistics' by Larry Wasserman (http://www.stat.cmu.edu/~larry/all-of-statistics/)

It runs through a lot of important topics, particularly in inference, without being either as turgid as most stats texts for people without a maths background or as dry as more 'pure' books (no measure theory required).

For biology I'd recommend 'Physical Biology of the Cell' (http://microsite.garlandscience.com/pboc2/) if you like to think quantitatively. About evolution specifically I find Schrodinger's 'What is Life?' thought-provoking if you already know the basics.