Biostatistical Analysis using "R"

MUST HAVE EXPERIENCE IN BOTH BIOSTATISTICS AND "R" SOFTWARE

Need help with the following things:

1) Deciding which statistical tests are the most appropriate for 4-5 different data sets, all of which are coming from the same experiment.

2) Instructions on how to perform the analysis using R

3) Guidance on ways to get preliminary trends sufficient for abstract proposal initially, followed by more thorough analyses that will allow for publication