Thanks again for the responses,
I've edited the original schematic on the initial post
1. I just built up the circuit and works generally fine, however; the current that is set by the voltage on the non-inverting pin does not match that through a load resistor (by a scale factor of 10 due to 0.1 ohms as opposed to 1-ohm voltage drop for 1A).Although, the two are directly proportional in that as the voltage on the non-inverting pin decreases so does the current through the load (somewhat linearly) which is really the only thing I require for this application. Would this be an effect of the op-amp itself?
The values of R3 and C1 may need some fiddling to get a good compromise between stability and transient response
2. Also, I couldn't get the system to oscillate with or without R3 and C1. What would be the simplest method of doing this to test the stability/transient response of the RC network to ensure that the system remains stable over time?
neither opamp is frequency compensated, those things will oscillate
3. Finally, I've attached a circuit which is the same as the initial one except for an added diff. amp with a gain of 10 (making use of both op-amps in the 358 package at least

). Is this a possible solution to increasing the potentiometer degrees of motion or is it full of opportunities for loop instability/oscillation not to mention, over-complication?