Hey guys I need a little help with my sabre,I feel its time for a full tune up and i have never done one on a car before so i need a little help. What are the parts i need to do this plugs wires and thats all i can think of?

Plugs (Platinum or Bosch not recommended), Wires (prefer Napa Belden, etc) PCV valve, air filter, front O2 sensor, fuel filter. Belt (if not replaced yet).

Wait, is it bad to put ACDelcos platinum in? bought some today but didn't put them in yet...

No, you'll be fine with Delco platinums. You're not supercharged. It'* the Bosch BRAND that'* bad in our cars, and anything platinum for supercharged applications.

i would go with delco all the way. keep it g.m.

Consider upgrading to a K&N air filter if you can afford it.

i have a shitty CAI but how much do you think a set of plugs wires and the front O2 is going to cost me in CND?

Hmmmm....no idea in Canadian. Cost me around $60 US for the plugs and wires if I remember right. I am sure some of your fellow Canucks will chime in soon.
And, oh yeah, have never boughten an 02 Sensor so no idea there, sorry.

Can't go wrong with AC Delco parts, I run Delco plugs in my GN and have NEVER had a problem.