Just A Few Questions.....

[col_ea]

Okay....let me be honest.....I know next to nothing about cars....So I'll make this short sharp and shiny.
About 3 years ago, when the EA Fairmont was still the main family car, It's Automatic Tranny died. My father had it replaced with a manual.
Now that My sister's moved out, my Parents got a new car, I sold my Stigma and recieved the old EA Fairmont as a gift from my Parents (For getting my L's).

To cut the long story Short....The car is running like...well...total crap...

When you start it (Takes a good 15-20 seconds before it catchen on) The RPM Fluctuates to the point where It's almost stalling, and almost up to 1K RPM.

When I'm driving, and put my foot on the clutch to change gears, Sometimes it WILL Stall. if I take my foot of the clutch slightly, It comes back to life, but more often than not...It wont....(This is changing down gears)

Another annoying little problem is the Power Steering system has a leak somewhere, I'm going though a litre of fluid in about 2 weeks, and my pockets arent really that deep...

My Questions Are;

1. Is it worth getting it fixed?
2. Should I get an auto put back in it?
3. What else could be done to help it run a lot better than it is?
and 4. Why does ti stall when I depress the clutch?

Thanks for reading all this, and Thanks in advance for any help or opinions you cna put forward.