Have a look at TeXMaker. :-)
features (from wiki):
- In-line spell check.
- A unicode editor to write LaTeX source files (syntax highlighting,
undo-redo, search-replace, spell
checker...)
- LaTeX tags and mathematical symbols can be entered with a mouse
- Document and section templates
- LaTeX-related programs can be launched
- BibTeX database management
- An outline or "structure view"
- Logfiles during LaTeX compilation and the ability to "step through"
source errors that are discovered by
the compiler
- An integrated LaTeX to HTML conversion tool
features (from me):
- useful wizards for inserting tables, citation, referencing
- bidirectional support
- useful keyboard shortcuts
- Auto Complete words (specially is useful with referencing)
- define your own instructions