If you get a real wood finish it might help to order all of the speakers you want in that finish at the same time. I ordered my M60s in cherry chestnut semi-gloss, and then center and surrounds about 6 months later in the same and there was a noticeable difference in the stain. Maybe because they were made at different times I guess. Not a significant difference, but the towers were quite a bit darker and not as glossy as the center and surrounds turned out to be that were ordered and made at the same time in the same batch. If they make the set at one time they will probably all be uniform in appearance.
M60|VP150|2xQS8|PSA XS30+Epik Empire|Pioneer Kuro 6010FD|PS3|Denon AVR-X4000|Parasound 5250v.2|