[BioC] Installing bioconductor packages on leopard inside custom R

[Shripad Sinari]

Hello,

I have a 64-bit Mac and Leopard. I have compiled and installed R from source
with gcc 4.2 for architecture x86_64.

* I would appreciate suggestions on installing bioconductor packages easily,
i.e., preferably not from source.

Otherwise,

* Can any one suggest, as how to download the sources for all available
packages from a repository?

* Does any have a script to compile these in a batch and install?

Any help in this regard is appreciated.
Thanks, 

Shripad Sinari