A member of the X-Rite Coloratti, Martin uses and recommends the following products
To calibrate your display, the i1Display Pro is the perfect tool. If you need to calibrate your display AND create print profiles, the ColorMunki Photo is very powerful tool. The ultimate display and print profiling solution is the i1 Pro Photo 2.
Here is a list of all X-Rite products on B&H Photo. These are affiliate links, so you help support the site and Podcast by using these links when you buy. Of course the price to you is unchanged when you buy using these links.