Use Image Play
http://imageplay.sourceforge.net/
in tandem with OG. Image Tricks
http://www.belightsoft.com/products/...s/overview.php
is also a good companion. Both are free and use the built-in core image commands. Only Imageplay does reflections. You can search macupdate.com for more free programs that do these neat effects, but these two work best in my experience.