[kmjperformance]

Figured it out!

In Products.tpl search for...(I think it's about half way down)

 
<td width="100%">{if $products[prod].main eq "Y" or $main ne "category_products"}<b>{/if}<a href="product_modify.php?productid={$products[prod].productid}{if $navpage}&amp;page={$navpage}{/if}">{$products[prod].product|truncate:128:"...":false}</a>{if $products[prod].main eq "Y" or $main ne "category_products"}</b>{/if}</td>

I forgot what the original length was, but change the bold-red number to whatever you want it truncated to. I chose 128 because I'm pretty sure none of my product titles are longer than that.

Hope this helps!