Why is it all my keywords are nice and low priced and as soon as the impressions/clicks start to go up WHACK! so does the price (CPC)???
If it's a new campaign, then it takes a little while for the QS to kick in. Give it a day or so then you'll see bids that more accurately reflect what G's thinks of your campaign.
Relevance. Make sure your keywords, ads and landing pages are all relevant to each other and make sure the quality of content is good. This will increase your QS with Google and your CPC will go down... if they're not - it will go UP in price.