To me at least, Race is a strawman issue. All races can be Street Sams.
Out of the others:
Resouces
Attributes
Skills
Pretty much in that order.
You need the resources to buy your toys... and as a Sam, you have a LOT of toys to buy! Guns, armor, ware, ammo, are the main ones. Lifestyle, transportation and 'fun' are also important.
Attributes to have a solid foundation. You're going to get hit. That's a fact of the job. Having strong base attributes before armor and ware allow you to survive and do your job just that much better.
Skills (for me) come in at 3rd, as the next important. Combat is your bread and butter, but don't forget to pick up those noncombat, yet still important skills such as social, stealth, and perception as they are just as important as your weapon skills. You don't need to "fade into the shadows" or out talk a politian, or be able to spot a needle at 1000 yards.... but you don't want to be knocking over trash cans while sneaking, or limited to mono-sylible responses. And you Definately want to be able to spot the guard, before he spots you!