Sweet! I'm glad I could help. Again though, each journal style uses different elements. (For example, I completely hand-coded a layout for Smooth Sailing and put it in Bloggish just to see what went wrong and it totally broke it ;.;) But that's a great start for designing your own layouts in Bloggish, and without a paid account too.
Right on! I actually use a pre-beta build called Aurora. (It gets finnicky sometimes but by and large I have not had problems with it and it's totally compatible with the Web Developer Toolbar, LJ-Login, and a few other things that are awesome, like ColorZilla.) The inspect element tool can help you map out other more specific elements if you have trouble figuring out what they are.