Hi,
To get started with PPC for newcomer can be time-consuming and costly, my advice is start slow and low. Don't overflow too much of keywords, it will burn your pocket. Test it slowly, and delete those unconverted keywords and so on. Do a lot of keywords research. Try long tail keywords, do not targeted too generic terms.
Another advice I can give you is that........Google is Not the only PPC search marketing provider, sometime depending on the area you are focusing as well as your margin, other search engine such as Yahoo and MSN, is better to generate a healthy ROI.
Hope it help.
