If you're able to wait a few months, I can confirm that Steam-Trains & Sorcery by Silicon Phoenix Gaming has all of the elements you mentioned in some form or another, plus 2 new tech-using base classes (gadgeteer and medic), over 40 technology-based feats, over 10 prestige classes, and over 100 devices divided into four fields (Armament, Chemistry, Energy, and Mechanization). Naturally, it also has complete rules for using technology, incorporating it into your campaign, and how it interacts with magic. The link to our website is in my sig. It hasn't been updated in a while because I have been in Germany for the last few months, with limited web access, but a lot of writing has been done, and we are currently pushing for a late summer/early fall release.
