Just bought a 92 SL2 for $300

[peppermrj]

Here is a list of maintenece items @ the 100,000 mile interval.
You already have most covered.
100K Miles

Replace the ETCS (unless it has already been replaced with the all metal unit)
Change the coolant (Replace thermostat if heater performance is not up to par)
Change engine oil and filter
Replace AUTOMATIC transaxle fluid and filter (Mobil 1 ATF strongly recommended)
You DO NOT need to change the manual transaxle fluid
CLEAN Throttle body and IAC passage
CHECK the CV joint boots for grease leakage
CHECK the steering rack boots for leakage
CHECK the drive belt and tensioner
CLEAN the EGR valve pintle and passages
REPLACE the spark plugs (NGK CONVENTIONAL PLUGS .040 gap)
CLEAN the coilpack towers and coilpack mounting bolts
CLEAN the MAP sensor vacuum ports
REPLACE the PCV valve (SATURN ONLY PART NOT AFTERMARKET)
INSPECT vacuum lines
INSECT/ADJUST rear brake shoes
GREASE parking brake cables and linkages (especially on rear disk cars)
CHECK rear door threasholds for rust
Lubricate door hinges, latches and stops
Lubricate (silicon spray) window glass channels
CHECK tierod ends and ball joints for wear
CHECK rear suspension links for wear/damage
CHECK exhaust system for leaks/damage
REPLACE fuel filter
FLUSH out body panels with clear water
Check inflation of SPARE TIRE
Rotate tires and INSPECT front brake pads
LUBRICATE front brake lock and guide pins (And rear lock and guide pins on 4wheel disk cars)
Check cam cover gasket for leakage, replace if leaking
REPLACE the battery if over 4 years old. (CHARGE if under 4 years old)
CLEAN Battery terminals and battery cables