I'm interested in reading The Gallic War, having read secondary sources about the Roman Empire and a short book (~100 page) about the wars (Kate Gilliver, Caesar's Gallic Wars: 58-50 BC (2002) . However, the edition of The Gallic War is the Harvard 1917 translation and presents the text with very minimal annotations and no maps.
I'm wondering if there are other translations out there that I should consider, or if there are either print or online resources that will provide maps and commentary about the text that I can use to get a bigger picture of what's going on.
The Loeb should contain both maps and a rather good commentary and appendix, the Loeb Caesar is one of the better Loebs. My copy certainly has them. If you don't know any Latin and aren't especially picky about knowing what the Latin actually says you might as well just read the de Bello Gallico at Lacus Curtius, which presents the Loeb text since it's now in the public domain.
PS: I'm amused as all hell that the Amazon blurb claims that in the de Bello Gallico "there is no rhetoric." That's complete nonsense, Caesar's straightforward style is a rhetorical style, Caesar was an authority on what is called the Plain or Direct Style, for which he was highly praised by Cicero and others