thanks for all this good information ! And sorry to have hijacked this thread, I'll create my own soon (I just received the needed shadowrun minis).
Concerning rules, I already own 5150: new beginnings, wich seems (as far as I readed it) perfect for a shadowrun conversion. Using my official 3rd edition shadowrun book + 5150:nb should allow me to cover most of the shadowrun setup.
In 5150:nb you can be hired to do jobs for corporations, "black" jobs, with raids, kill someone missions, break and steal some item, robbery, transport, bodyguard, etc... You even have to be interviewed by the employer before obtaining the job.
I also recently readed about the "private investigator" addon for the game, allowing new investigation missions.
The only thing I'll have to tweak are the weapons and cyberware, races, magic (probably use other THW fantasy games I own), and of course the matrix. I will use the official rulebook to give me infos and directions.