If you have $5 in hour adwords account you ad will start to have impressions. Just go for it. I have been optimizing and running my and my customer's campaign very successfully.

Do a search for $25 Googlke AdWords credit and you might be able to find a coupon.

Before you begin, understand that Google AdWords can be a tough nut to crack. If you are buying traffic for an established company/website with a big budget, then it can be pretty easy.

However, if you are advertising a new site, then things will be a little more difficult. When you go to Google AdWords, make sure you do a search for "quality score" and understand what that is.

I found this tool about a month ago and it cut my adwords costs in half. It also helps me find better keywords and I get more conversions with my budget. Definitely a must have in my opinion.

http://www.productfinderonline.com/googleambush.htm

If you are a scrapper, check out my site for supplies at:

http://www.diyscrapbookingstore.com