Is it possible to modify the size of an editor window, and/or size of the text?

Graham Wakefield's icon

I'd like to open a text editor (ed_new et al.) and resize it, and
ideally increase the text font size, perhaps even use a fixed width
font (The text is so tiny and because it is anti-aliased it's hard to
read on MacOSX).

Any chance? Or will I have to leverage Java?

Thanks