There is a sort of WYSIWYG Tikz tool I just found, called TikzEdt. It's not perfect, but it's brand new and much better than doing Tikz by hand. I haven't seen it mentioned on this site, and I have no connection to the developer.
Check it out: http://code.google.com/p/tikzedt/
http://www.codeproject.com/KB/WPF/TikzEdt.aspx
Graphics, Figures & Tables ⇒ TikzEdt: Tikz WYSIWYG
Learn LaTeX easily with newest books:
The LaTeX Beginner's Guide: 2nd edition and perfect for students writing a thesis
The LaTeX Cookbook: 2nd edition full of practical examples for mathematics, physics, chemistry, and more
LaTeX Graphics with TikZ: the first book about TikZ for perfect drawings in your LaTeX thesis
Re: TikzEdt: Tikz WYSIWYG
Very interesting, thank you.
OS: Win 7 64-bit LaTeX: MikTeX 2.9 64-bit Editor: TXC 1 RC1