Um. No he wouldn't have too. For one CS3 has GI. And what type of glowing are you after? As in light sources? Or merely the appearance of being light sources. There are a few methods you could use.
1. Place the color/texture that you want your objects to glow into the glow channel of the objects shader. Then create a bulb that emits a similar colored light near the object to simulate the effect of the light emiting (cheap method but fast at rendering)
2. Repeat the beginning steps of step 1. but do not create a bulb, but instead render with GI. Keep in mind these tips:
http://www.vizualds.com/article/various-gi-tips
When using GI.
3. OR you could use an anything glows object. Though I've found that they actually tend to render slower then GI would. Because an anything glows object simulates the effect of GI by duplicating as many lights as necessary to get the effect so you can end up with well over a 100 lights that the raytracer would have to calculate. Which would lead to high render times.
Goodluck.