I've turned the 2010 Calendar that came in the January 5th 2010 issue of Hana to Yuma magazine into lovely 1600x1200 pixel wallpaper for your laptop or PC desktop.
The calendar itself self is actually a good sized wall calender, so if you want one for yourself, go spend the $4 - $6 to get a copy of the first issue of the 2010 Hana to Yume magazine at your local Japanese bookstore. For those of you in the US that aren't near a Japanese bookstore, try Akadot. They should have the magazine in stock in a week or two and it'll run you about $14 after shipping (I recommend USPS Priority Mail -- it'll get it to you in 2-business days for a nice price) and sales tax.