Once you get your head wrapped around programming and you start to develop your plugin I recommend you read through this guide on how to ensure your plugin doesn't clash with other plugins: http://www.thomthom.net/thoughts/2012/01/golden-rules-of-sketchup-plugin-development/ There's also many more articles on my blog detailing various topics.

Oh well, run indeed (thanks, I corrected it). The u and i are next to each other for my thick, sausage fingers.