Building GMP library with Visual Studio?

Question

Is there an easy way to build the GMP (GNU Multiple Precision Arithmetic Library, http://gmplib.org) under Windows, using Visual Studio 2005? I tried to find information about building the library myself, but could not find anything that really helped me. I'm not very experienced with building libraries myself (I've managed to build boost, but that's about it).

Or is there a stable (pre-built) GMP distribution that I'm unaware of?

Is MPIR a valid alternative (http://www.mpir.org)? Comment about MPIR on the GMP site: This "angry GMP fork" might be an alternative to the real GMP for some Windows users, but they'll have to deal with lots of anti-GMP sentiments.

Edit: The MPFR C++ wrapper page contains information/links to GMP/MPFR solutions for Visual Studio and compiled gmp/mpfr libraries as well: http://www.holoborodko.com/pavel/mpfr/