ToonPro and WireframePro both add a specific stylistic look to your renders. They are very cool add-ons , but you might use them less than you think.... Depends on if you are planning to do a lot of line illustrations or hi-tech displays. We all need more hi-tech displays, riiight? =^D If you will be building or texturing architecture be sure to check out Veloutat www.inagoni.com. It creates brick and tile patterns, but so much more including seemless 2D and 3D (volumetric) noise, pattern, and line shaders. (I also bought ArchiTools but haven't used it as much: it is good for making "prefab" box-y houses and office cubicals but not good with curves or "interesting" architecture.) I seem to use Veloutin every scene. DCG's ShaderOps and ShadersPlus have both been needed LIFESAVERS to "fix" problems in a scene. I recommend both if you are making your own shaders, and especially ShadersPlus if you are working with HDRI or Global Illumination lighting. I use at least one of the tools in these plugins in almost every scene. Inagoni's Baker and DCG's AnythingGoos are going to be useful when you need extra realism. Baker exports procedural textures as images so you can paint on details or damage (via Photoshop, etc), and A.Goos adds crevice grime and edge-wear based on the geometry of your model. Even though C5 has added many features that are similar to some plug-ins, so far it looks like most times the plug-ins still offer more options and control: Primivol for volumetric clouds and smoke, AnythingGrooves for displacement, AnythingGrows for replicating geometry on a surface.... All have options that go farther than the new features in C5 so don't count them out. happy shopping! holly