Google rolls out "Blogger Template Designer" to everyone. Anyone can try out the template designer here. If you like your design, you can apply it to new blog or to an existing blog. You can also try Template Designer on your blog (Design > Template Designer). Note: Selecting a new template will erase all of your customizations on existing template, so if you've customized your template be sure to first save current template at Design > Edit HTML.
Features highlights: 19 brand-new templates; Designs are completely defined in CSS, meaning that any design can be applied to any blog layout; Hundreds of free, professional background images paired up with iStockphoto; single control to change all your design's colors; Pixel-perfect layout manipulation via smooth resizing; real-time preview sits below the design control panel; Complete control. Under advanced tab, you can override design's CSS and enter your own CSS in editor and see your blog's preview updated in real time; Cross-browser support.