TypeIt4Me expands your abbreviations as you type, and works in all applications, not just one. It also lets you define meaningful abbreviations, so you can type them naturally, as part of your writing, without memorizingor reaching forobscure ctrl-cmd-xyz combinations.
Anytime you enter text in your Mac by typing it at the keyboard, TypeIt4Me can help you do it faster and more accurately. First you define a number of abbreviations and the full text entries that they represent, then you watch the Mac expand them on the fly even as you continue typing!

Whats New
Version 5.2:

We-ve added a spiffy new Date / Time Math function that will expand a date abbreviation of your choosing to a calculated-on-the-fly date and / or time in the future. Or in the past, for that matter- It-s better than a flux capacitor, really. Great Scott!
There-s a new way to issue a SHIFT-TAB (which can move the cursor to a cell to the left in a table or to a previous field in a form).
As requested by one of our customers, we-ve introduced another -hidden- option. It tells TypeIt4Me not to use just the first four characters of what you-ve copied to the clipboard as a default suggestion when proposing an abbreviation in Add a Clipping:
defaults write com.typeit4me.TypeIt4MeMenu shortenProposedAbb -bool NO
For now, the above command needs to be copied and pasted

Requirements
PPC / Intel, Mac OS X 10.5 or later.

Link for more information: http://"http://www.ettoresoftware.com/products/typeit4me/"