This is a nice simple addition that adds a 'recent things' stack to the Dock - http://www.macosxhints.com/article.php?story=20071101055329470

firefox ,textmate, audicity, itunes, flash cs3, photoshop cs3, transmission, qt, divx player, vlc, disco, digital photo pro, eos utlity, disk utility, font explorer x, usenext, office 2008,little snitch - and a bunch of the standards

and i use unrarx which seems nice and simple - i noticed a
as a web developer i never use safari other than to test (and spend my time accommodating) that piece of shit.

firefox 3 behaves much closer to safari on mac os x when it comes to auto mounting dmgs, etc.