For feat training, Caliber 3 options I like: Traceless (a little bit). Cal 2: Armor Basics, Dash (kind of), Mingling Basics (kind of), Superior Cover. Cal 1 (feels like a waste, since I can only have 1): Clean and Polished.
The only other option that seems worthwhile to me is one and/or several gadgets and/or explosives. In that case, the gadgets I'm considering are EMP and EMP hardening, DR, silence, maaaaybe x-ray vision, and possibly some ordinary explosives to fill out any remaining picks I have.
Which leads me to a question I have for LordK. Can we expect any hacking conflicts? Normally I avoid them like the plague because they're just so impossibly boring, but in a pbp, that might not be an issue. The answer will greatly influence whether I hang onto my security software or not.
As far as omni-tool is concerned, I don't think it would be a problem for standard gear, where you get it as an extra on top of whatever gear picks/mission caliber things turn out to be. Favored gear sets the caliber at 1/3 your level. But as with a lot of things, it doesn't translate smoothly into the big score gear systems. Or maybe not, favored gear is a bit of a strange feat anyway. Using extra gear instead might be better for the next edition.
A light kinetic barrier wouldn't be a bad idea, and you can spend a Caliber pick to buy upgrades for your pistol. A good holster and an ACOG would be solid investments.
Glimm, one's omni-tool comes with one Caliber I kit. Can you add more kits to an omni-tool if you purchase the kit separately? (I think so. Am I correct?)
I have a light barrier already. Weapon upgrades feel wrong for the character, and I hope to avoid more fights than not anyway, but I'll have a look. Also, I read that bit about the kits wrong, I thought it came with all caliber I kits. That helps with this dilemma somewhat.