Thank you all for your designs! It was very difficult to choose a winner. The logos by Cibus, Camfretchie and ShinnymanStudio were also awesome, but Samsolo hit the spot with a really nice clean logo with a lot of possibilities.
@ShinymanStudio. I like a corporate look with a creative twist. Maybe you can try a few variations with the ball on a different position, to make to logo look better in the header of the website. I prefer a different color of the volleybal (now it has a basketball color). By the way, in the Netherlands, volleyball is written with one 'l': volleybal.
Some general feedback:
The logo should be about volleyball. I don't want to stress out it is a shop. The (domain)name says enough already. Therefor i don't like the designs with shopping carts.
I realize the domainname is long, and makes the design of the logo more difficult. Import for me is that the logo should be clearly visible when it is small. Please break the domainname in two or tree pieces to get a compact logo.
Keep it simple, but it shouldn't look cheap.
For instance, i like what maidenbrands did with the logo for boatpro's: