The power steering could be either low on Dextron III fluid or the pump is starting to go or the screen filters are clogged. Check your level at the pump.
The A/C problem is insufficient or no R12, if it hasn't been converted to 134. I see you are in Miami and I would ask around for a reliable Cuban Mechanic who would do a leak test for you before adding freon. Having lived there a while I know they exist. A rebuilt pump, if needed, should run you in the 120-140 dollar range. PACE in tampa can supply you with A/C parts. Use key words "Power Steering"and then "A/C" or "air conditioning" etc. in this forum as there is a lot of information in regards to both your problems. A good mechanic would not mind if you brought him the parts.