Actually, since I use Adobe Lightroom for most of my image processing I decided to use an add-on recommended on the Adobe site for this purpose. It's called LR2 Mogrify, and works great. It does the watermarking with any font on your machine, graphics, does borders and more. If you use LR, it is great. http://www.photographers-toolbox.com/products/lr2mogrify.php
Best of all it's donationware, and so not a big cost.
Even without the watermarking feature, I would still purchase PG, just for the ease of managing galleries, titles, and descriptions.
It still doesn't deal with the issue of the watermark being on the thumbnails, which I think looks tacky...