How to replace the Enchanting alphabet in Minecraft?

There's a mod here that works for 1.9pre3, but it's just replacing one image file so I'd think it would work with the current version as well.

The Minecraft Wiki has instructions for replacing the "alternate" font with the "standard" font that I assume should work on any arbitrary version.

Open your minecraft.jar (usually found in a folder called bin) with WINrar or something. In the font folder there are two png files. One called default the other alternative. Rename the one named alternative to default and load up Minecraft. It should change it to the English alphabet.