http://www.davincivaporizer.com/
Awesome portable, electric vaporisers. $200 or $250. Very slick.
http://www.macupdate.com/app/mac/5721/tinkertool
Exposes additional preference settings for OSX allowing things like sloppy focus (activate window on mouseover) and probably other cool stuff. Must have.
http://lifehacker.com/5985248/top-10-underhyped-mac-apps
Good wee article on lifehacker hilghlighting 10 underrated mac apps worth having. A few are free, and some seem worth checking out.
http://jumpcut.sourceforge.net/
Simple clipboard buffer (keeps a clipboard history). Not quite select / middle click, but a step in the right direction.
http://www.boastr.de/#features
A must have mouse customisation app for OSX which is free (as in beer?). Includes awesomeness like snap windows to positions and other genius. Looks outstandingly useful.
http://www.prchecker.info/check_page_rank.php
Handy little app to check a url's pagerank.
http://kwiksurveys.com/
Neat survey tool which is apparently free. Might have ads, didn't notice (adblockplus).
http://leftlogic.com/lounge/articles/entity-lookup/
An HTML entity lookup service. Type in part of the name or character and it'll show you the options. Useful.
http://www.alexyoung.org/articles/show/12/vim_for_textmate_fans
An article on tuning vim to be more like Texmate (proprietary mac text editor). Discusses code completion, plugins, and a few other cool tips.
http://grigio.org/pimp_my_gedit_was_textmate_linux
A post on pimping Gedit to make is something like Textmate (proprietary mac editor). Includes tips on some useful plugins and how to tweak settings. Worth checking out.
http://tips.webdesign10.com/editors-for-ruby-on-rails-ubuntu-jedit-emacs-radrails-cream-scite
An overview of various editors for Ubuntu Dapper, focusing on Ruby on Rails compatibility. Each editor is covered in a little detail with enough information to get a flavour of it. Useful.