Joshua, just rediscovering this story hour after being away for awhile.  I like the new stuff, glad to hear you've converted over to d20 Modern.  I'm having a helluva time doing the same with my game, as I fudged a lot of the mechanics early on.  The good part about starting with the "light" version of d20 Modern from the Shadow Chasers Polyhedron is that I tinkered around and created some cool rules and spell effects on my own.  As my game is story driven and only has one regular PC, the mechanics are not a huge issue.  I'm still considering a larger game with 4-6 PCs, using full-fledged d20 Modern rules.