I made a revised sheet that I'll post later tonight (I don't have it on this computer). When field-testing the sheet (i.e. making a character) I noticed that there's too little space for the feats/class abilities thing, so I made more. I also noted that the boxes were generally too small to write in comfortably, so I made them slightly bigger and moved the skills to page 2 (and some of the page 2 stuff to page 1). Oh, and I made two slightly different versions - they differ only in that one has a standard page setup and the other has a facing-page setup. In the latter, the second page has a wider right margin than left margin, to match up with the wider left margin on the first page when printing it double-sided (to leave room for hole-punching).
I also noticed that I had had a brain fart when making the first sheet and put in a "Weapon" mastery instead of the "Tactics" mastery.
As for doing advanced stuff with the PDF (writing in stuff and auto-calculating), that's beyond my capabilities. I designed the sheet in Word, and used a free application (Ghostscript and CutePDF) to turn it into a PDF, but that doesn't allow me to mess around with the PDF later. If anyone else wants to do it, I'm more than willing to let them. If they need the Word file, I can send it too.