GNOME 3 now deployed on many Linux distros. is cluttered and in my opinion not suitable for use on a production machine. I need a Desktop Environment that allows me to just get things done with minimal fuss. This is where the older Gnome 2 Desktop Environment excels.
Linux Mint 12 goes some way to addressing this wth MGSE (Mint Gnome Shell Extensions) which is a layer built on top of GNOME 3 however for me like other distros. to deploy the GNOME 3 Desktop Environment does not convince enough for an installation
http://www.linuxmint.com/rel_lisa_whatsnew.php
Given it a spin by running it from a LiveDVD and see what you think
Linux Mint 12 Download
http://www.linuxmint.com/edition.php?id=94
Linux Mint 12 Release Notes/Installation Guide/User Guide
http://www.linuxmint.com/rel_lisa.php
Linux Desktop Faceoff GNOME 3 Shell vs Ubuntu Unity
http://lifehacker.com/5853099/linux-desktop-faceoff-gnome-3-vs-ubuntu-unity
I thoroughly recommend the earlier release Linux Mint 11 that uses the Gnome 2 Desktop Enviroinment. Its easy to install and easy to use plus it comes with much of the software you are likely to need preinstalled
Linux Mint 11 Download
http://www.linuxmint.com/edition.php?id=81
Linux Mint 11 Release Notes/Installation Guide/User Guide
http://linuxmint.com/rel_katya.php
Also worth considering is Linux Mint Debian Edition
Linux Mint Debian Edition Download
http://www.linuxmint.com/edition.php?id=88
Manual partitioning guide for Linux Mint Debian Edition
http://www.linuxbsdos.com/2010/12/28/manual-disk-partitioning-guide-for-linux-mint-debian-edition/
You download the ISO. image of Linux Mint 12/Linux Mint 11 or Linux Mint Debian Edition then you need to create a Bootable LiveDVD
https://help.ubuntu.com/community/BurningIsoHowto
Linux Mint 11 and Linux Mint Debian Edition as with Linux Mint 12 can also be run straight from the LiveDVD without touching your Hard Drive
LUg.