Remember that as an affiliate, what you really are is an advertiser. Your job is to pre-sell your site visitors before they click that e-commerce link so they're ready to buy when they get there. If you just throw up a bunch of links that seem unrelated with no content, you'll have minimal success. Some suggestions:
1) Try to keep the items listed topical and related to some niche. If you have a mishmash of books, CDs, DVDs, electronics, software, automotive, kitchen items, etc. which are unrelated, your visitors' eyes will glaze over and they'll go somewhere else.
2) Add content to your link. Make the information succinct, but grabs their attention. That's the heart of advertising.
3) Make it personable. With a limited number of items you can add a personal touch to descriptions of the items. If you own one and recommend it, then say so. "I have one of these and I love it!" Do a little research about each one and add content. "This is constantly one of the bestselling items at this site." "One critic called this the one item you can't do without." "This should perfect for that empty corner in your dining room."
4) If you can extract the price from a datafeed, and it's a great or competitive price, then display it.
5) Link directly to the product page where the product description and add-to-cart button are located. Make it easier for your visitors to buy it. Going to a search page often requires an extra click to get to a page where they add-to-cart. Make it easier for them, not more difficult.
Think like an advertiser, not a web programmer.