yeah, i would go for the saving picture in Tiff or photoshop format, and then using the alpha channel to import a background picture. especially if you are rendering at dpi's more than 72 (eg 300dpi for print) unless the background pic you want to use is exactly the same dimensions as your poser render it will always be stretched and blocky. A possible solution is using the Infinity Cove from Runtime DNA freestuff, but then again that uses photo-studio type airbrushed backgrounds. looks good though. try it.