We used the entry-level Mac mini shipping with a single 1 GB RAM module. We replaced the latest by 2 modules of 2 GB each (less than 35 euro each) and changed the HD by a 60 GB SSD from OCZ, an entry level product but a perfect storage unit if you want to use your modified Mac mini as a media center.
As reported previously, with 2x2 GB of RAM, the shared memory allocated to the graphical chipset is now of 256 MB, instead of 128 MB.
Direct link to the article (still in French) http://www.macbidouille.com/articles/249/
