You have your keyword list that tells which keywords searchers are searching for when they search for your web site or/and your product line, however you might need some brainwaves to add flavor and improve conversion. I have composed some words that I hope will inspire you.
People don't see the unchanged things after they are persistently exposed to them time and again. In Internet promotion banner blindness is the most famous case. People basically get used to banners that promote something that is not worth their time, therefore they stop seeing the banners after some time. The same thing happens with vocabulary that are used to make us do something.
Hence, you need to alter your action vocabulary occasionally to keep them effective. The problem for most writers is that it is really not easy to alter the vocabulary because of old habit.
I have made this list of actions vocabulary to assist you alter vocabulary occasionally to keep making your web copy effect full.
Here are some examples on how you can vary call to action and modern words.

Call To Action: don't miss, right now, buy now, don't wait, this instant, immediately, act now, now or never, get it now!, decide now, order now, now is the time.

Indicating Modern or New: modish, topical, modern, current, futuristic, original, ultraup-to-date, classy, at the height of fashion, trendy, hip, ahead of its time, forward-looking, forward-thinking, recent, unused, stylish, spanking-new, advanced, the latest, chic, high-tech, enlightened, brand-new, new, revolutionary, fresh, fashionable, hot, up-to-the-minute, pristine.