The visuals in Rage of Mages range from quite good to stunning. The game visuals in the town and on the map to choose quests are excellent. The town renderings are some of the nicest, most detailed computer art I've seen. The quest graphics aren't too shabby either, with nice looking terrain that can be displayed in 640x480 up to 1024x768. The highest resolution really works well in this game, and is a pleasure to use since you get to see more information more easily, not only on the map but in the control areas surrounding it.
Sound effects are pretty good, but nothing spectacular.
Spell sounds and death agonies are run of the mill and like any real time strategy game your units will acknowledge your commands. The voice work in these cases was OK, but the responses got on my nerves after a while. In the Inn, all of the text also includes voice narration which is pretty good. After each completed quest you'll also be rewarded with short animated cut scenes. These look spectacular, the quality of the best movie animation, but don't last more than a few seconds.