If you don't know HTML, don't think that an editor makes your page out of some magical material. It's still HTML at its heart- try viewing the source. If you couldn't predictably tweak your page and get the results you want while using the text source, then forget ever having a successful site. There are literally billions of pages floating out there in cyber space. Don't use a background that makes your text unreadable.
Nobody likes that.
Make SURE you also make the background color contrast with the text. Let's say you find a dark background texture, so you use a white font. You still should so that it is readable even while the background image is loading. Don't steal graphics with a copyright on them. I seriously have heard of people's sites being taken down by their provider because of copyright breeches.