And please avoid writing "cuz" or "lookin" (Cockneys are permitted the latter, however). Explanation
here.
For a "simple" text editor (which I agree with) avoid NotePad; it has all sorts of annoying quirks making it a poor choice for programming. Try jEdit, NotePad2 or NotePad++ which are all a lot better; they support syntax highlighting and bracket matching too. My old laptop happily ran GUI stuff. Just slowly. Any PC will run the GUIs as long as it supports GUIs at all.
If you get a laptop like that with Windows on, you may end up with an old version of Windows; XP and Vista won't be happy with only 128MB RAM. Might be worth considering downloading the latest version of Ubuntu, partitioning the disk, and installing Linux too.