Idle problem, help pls!

[dakos]

Hi,
My SVX has a problem when idling... it hapens when stopping at the street lights, it goes up and don oscillating between 200 and 800 rpms..soemtimes even dies...and if i'll rave it to about 1000 1100 rpms it doesn't turns smooth, it has some hesitations but everything goes ok when the engine goes up over 1500 rpms, no hesitations or whatever when stepping hard on the gas pedal.
beside spark plugs that i intend to check up anything else ? any other suggestions?
also when shifting from first to second- i have a MT - and not accelerating to hard , more like kipping the engine to about 1500-1700 rpms sometimes the car will shake like the engine is chocking - i have to use the clutch or to step hard on the gas to get rid of this unpleasant sensation.
any advices will be more then welcomed.
thank you!