Fontforge is an ideal font design program, as far we could test it out:
Opening mac fonts (on ppc here) is more direct, and drawing tools are really ok to take on. Soft seems more fluid than previous version and... it can easely import inkscape svgs!
Here is a way to make correspond inkscape size of document and fontforge size of font. This means you don't have to resize your imported svgs, they would pop up at the right place in FontForge when opened. Follow those steps:
By default, fontforge glyph dimension box is 1000 x 1000 postscript
The baseline line is set at 0pt.
ascenders goes up to 800pt
and descender down to 200pt.
In Inkscape, create a new document
document properties, set all your units in inkscape in pixels
Set the document dimension to 1000px x 1000px
Set an horizontal guide at 200px
Draw your letter.
Save it on svg.
Import it on fontforge, selecting SVG in the file import menu box.
Dimensions an placement should be the same as the ones in the Inkscape document.