Thank you Gonzalo, they're all fantastic. I again would like to remind people that whilst great photos are nice, some other forms of wallpapers would be nice to have as well. Variety is the spice of life, and all that.
I'm really happy with the submissions so far and it's only the first full day of the contest!
P.S. Gonzalo, if you could make smaller versions just for display in this topic that would be great. I want everyone to see each others' entries (even if resized smaller) in this topic without having to click through to other sites.