Anyone know of a freeware app that will magnify a set area of the screen?  Much like the one built in to XP but where you can specify an area to magnify.

I managed to find one that could do this but there was no way to increase the magnification level.

EDIT: Nevermind, just realised you can do it with the xp one by unticking all the option boxes 

It is a feature within the "IntelliPoint" Mouse driver
http://www.microsoft.com/downloads/en/results.aspx?freetext=intellipoint&displaylang=en&stype=s_basic
Which sadly only works correctly with M$-hardware, but therefore can be steered with the mouse.