Yes, you want to go ahead and put one or more keywords here. Make sure they reflect what the page is about, not the website. A rule of thumb is one to four keywords, no more. The single most important item to obtain top positioning on the search engines and directories is content. Most of the search engines ignore the Meta tags too.
Content is what the page is about.
Each page should focus on only one subject, like egg beaters. You can show pictures of and describe several different types of egg beaters but don't talk about egg beaters and spatulas on the same page. The search engines and directories are really referral services, like the yellow pages. The better they are at getting you what you are looking for, the better chance they have of keeping you coming back. You can develop a theme on a page by ending with what you started with.