Need a new look...

I need a new look, well not me, but rather the blog, actually I probably need a new look too, but really it's the blog that's kind of blah. Being rather clueless about html I kind of fudge my way around, with my old system I liked the pictures across and the fonts, but for some reason they look different with the new system. The title looks different and I'm not sure why.

Can anyone explain how to actually create a banner rather than just posting pictures like I'm already doing?

Can anyone recommend a safe font download site?

I wonder if there's "Blog/Blog Templates for Dummies"? :D