If you have the time to review your accounts performance on a daily basis, do not do automatic bidding.
Competition is very high for website hosting, so what you'll need to do is create a long tail of keywords with the keyword tool.
AdWords can be very bloody, but it is very important at the beginning to get good data on your ads and keywords. Make sure your conversion codes are working too.
You'll have a big spend in the beginning because you dont have a good Quality Score. Its a game of patience, and don't go broke! But keep in mind for the first few weeks your cost per acquisition will probably be twice as high as it will be after that.
Your cost per day chart should look something like this at the start.
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