I use a Happy Hacking Pro 2. I think the tactile feel of switches are a mater of taste, and I'm not inclined to hard sell you on my preference.

Aside from a pleasant feel and sound, the keyboard's compact size makes it an ideal travel companion. It also has a control key where a caps lock key is found traditionally.

The HHK uses a Topre switch which is a hybrid between a rubber dome and a spring. http://deskthority.net/wiki/Topre_switch

* https://en.wikipedia.org/wiki/Happy_Hacking_Keyboard

* http://elitekeyboards.com/products.php?sub=pfu_keyboards,hhk...

* http://geekhack.org/ -- quite informative about various keyboards and key mods.

[edit: formatting, and more HHK details]