I'm sorry I haven't been able to post my thoughts on this.. even now I'm not quite up to going through all of it (been wokring way too much, and feeling kinda shitty)
I wrote a sticky thread about the races in the game.. there are four, three normal players will ever see, two that will be remotely common, only one that is common, (everything else is taken as rumors, and tall tales.)
Genetic modification I think is more accepted by the Terrans, and they very well may dable in it... but I think that there would eb laws against it in the league, based on the US's current attitude. At one point in time, it might have been popular, but people stopped doing it when they found out the mroe nasty side effects it might have. (A good percentage of those 'Gen-Mods' live near the galactic core, or in the 'free space' where smugglers, and pirates like to live.)
Cyber inplants are plausable, and in actuallity there is some technology that utilizes this in the story, but not in the 'normal' sci-fi way. Basically, The Grey (a race heard of only in rumors) have organic technology... which has perfected the blending of man and machine. The Sooni also have this, but fear it more than use it (due to thier hatred of the Grey), so it exists. There is a weapon that gets developed called a 'bracer' which has multiple things built into it. (Comm system, regenerating plasma cannon, retractable plade weapon, sensors, holo-display, etc.) It removes the need for a visor HUD... it sends the signal directly to your brain. It can even help with aiming (although it takes practice to 'let go' enough to allow it to control your movements.)
Basically, I want to keep cyber tech to a minimum among *most* people, and make it something your average player won't have, unles the specifically want to make a character that has that... aka, I want a cyberware user to be unique (or seen that way). That's all.
Hope you could get intelligable sentences out of that rambling responce..
--Chris