In Ye Olde Days, I used Kenad Broki's excel sheet, and it worked pretty well. I have no doubt I'd hunt down the next big thing if I run it in the future!
Skill Focus is a part of it, but it's overall problematic because the skill system - Focused or not - starts out way more badass than the attack system. So, low-level Jedi are far better off using Force powers offensively than they are using Lightsabers. This is, more or less, exactly the opposite of how I want it. (Skill Focus just exacerbates something that's already a problem.) Ideally, both should be viable through all levels. I'd like to see Force Powers follow a more uniform attack-bonus-style system.
The crippled nature of melee combat makes lightsabers an even worse choice. I'd need to fix that, too - probably by using the 4e action system.
Otherwise, I dig the mechanics. It's my favorite iteration of the d20 system.
