Oxford University Press just released the large print edition of the Scofield Study Bible III in New King James Version. The Scofield Study Bible III is the 2002 revision of the original Scofield Study Bible. The NKJV edition has been available for a while, but it is now available in large print, and it looks nice.
My favorite study Bibles are those that give you the room to create your own notes. The NRSV Notetaker’s Bible is just that. The NRSV Notetaker’s Bible with the Apocrypha from Oxford University Press is a Bible with a single column of text and a column of ruled lines for taking notes, making it an excellent study or devotional Bible.