Attached Link: http://secure.daz3d.com/shop.php?op=itemdetails&item=1105

Feel free to grab any images found on the products pages listed within this category. These images have been made available by their creators for use as web or low-res clip-art and may be used for any personal clip-art use.

IMPORTANT: Commercial use of these images is strictly prohibited. These images may not be repackaged or resold in any way, shape, or form. By saving copies of the images in the products listed herein, you voluntarily demonstrate your agreement to these terms. It is strictly prohibited to use images from any items outside this specific "Clip Art" category. Violation of these terms will be pursued legally with all due diligence by DAZ Productions, Inc.

According to these warnings and statements it is totally within my rights to snag an image, and use it to write tutorials for people using these images to create thier own textures, using this method, those people would never have to go to DAZ to purchase anything and yet still own DAZ quality textures for any and every poser model they already own...

I shrunk this particular image down to spare you guys, but hopefully it'll show you what I'm getting at...The origional is 512x512 just like your high res maps and will render in poser just as clearlly as they will...The image used to create this texture can be found at the link, it's a freebie so posting the link should be ok...
I won't even get into how nice some of your close up detailed pop ups are for other textures in your store are...Full body textures, and clothing textures could easilly be used in this manner...

Perhaps stating that the clip art images can not be altered from thier origional form and posted to the web will make it a bit safer...Personally I like the clip art idea for drawing in more users, but it clearlly needs to be thought out a tad more...