make prices stand out more?

[JamesD]

is there a way to increase the size of the price shown on the page or perhaps make it bold without affecting the size of the rest of the writing on the page?

[Steve G Griggs]

Changing the price appearance.

Yes, if you are reasonably confident with the design tab and HTML.
In the design tab select page preview and click on the price, switch to the layout code and you'll see the code for the product price layout.
What you need to do is this:
Where you see the variable ProductPriceDescription change it to read
<b>ProductPriceDescription</b>and the layout Product Price Excluding Tax change it to read<b>Product Price Excluding Tax</b>
If you want to make the vat description and price bold too you go to the line that starts with Product Price Including Tax an chage the line so you surround the line of code with the <b> </b> tags.
This will appear on all pages, but only make the price bold.
If you're up to speed on CSS you could use <span class="price"></span> tags with css classes to change fonts, text size, colours etc, just use the <span> tags in place of the <b> tags, and put the relevant css in the Actinic CSS file.
Hope this helps and makes sense.