Texmaker is yet another GUI centric tool for LaTeX and a pretty good one. The latest edition (1.9.9) has been spruced up and looks pretty neat. One of the best features in Texmaker that is not available in other tools like Kile, LyX, is the online spell-check. For a person like me who makes a billion spelling mistakes, the online spell-check is a savior. Texmaker is available across platforms for free. Check the download
page for more details.
For Ubuntu users
$ sudo aptitude install texmaker
