[Samuel_Michon]

I agree that Transmit and 1Password are exemplary Mac OS X user interfaces. The other apps mentioned: not so much. To me, they look like iOS ports. Lots of chrome, wasted screen real estate.

My personal favorites:

Versions - http://versionsapp.com/

Kaleidoscope - http://www.kaleidoscopeapp.com/

Coda - http://panic.com/coda/

Espresso - http://macrabbit.com/espresso/

PixelMator - http://www.pixelmator.com/

BoinxTV - http://www.boinx.com/boinxtv/overview/

LittleSnapper - http://www.realmacsoftware.com/littlesnapper/

OmniFocus - http://www.omnigroup.com/products/omnifocus/

[frou_dh]

Kaleidoscope is very pretty (as is its website), but the lack of ability to do any editing/merging once you view the diff is jarring. I wish they'd spend their time on that.