MacItBetter has released BetterZip 1.5 for Mac OS X.

BetterZip lets you quickly inspect archives without first extracting their
contents. You can add or extract files via drag-and-drop, delete files from
archives, rename files, and create new folders inside the archive.

BetterZip 1.5 has a preview that quickly displays images, PDF, HTML, and
text files in a drawer without the need for starting external programs.

The new version finally supports opening and extracting SIT archives.
Furthermore, it now supports MacBinary, BinHex, and DiskDoubler archives
bumping the number of supported archive formats to over twenty.

Besides many other new features, like automatically quitting the
application when the last window is closed, the support for RAR archives
has been enhanced.

BetterZip 1.5 opens, extracts, and even creates fully WinZip compatible
AES-256 encrypted zip archives. Furthermore, BetterZip can extract and
create zip files larger than 2 GB as well as archives with these formats:
tar, gzip, bzip2, rar, and 7-zip. Even more formats can be viewed and
extracted: arj, cpio, lzh/lha, cab, iso, chm, sit, dd, hqx, and bin.
BetterZip also opens various zip based Java archives: jar, war, sar, par,
ear, and wsr files.

The integrated file browser gives an archive-centric view on the
filesystem. No other files are displayed in this drawer.

BetterZip is a universal binary and requires Mac OS X 10.4 (Tiger) or
later. The trial version can be downloaded from http://macitbetter.com/ and
is fully functional for 30 days. A single user license can be purchased for
$19.95, family and business licenses are available.