2000 Prizm DEAD!

My prizm eats oil at an alarming rate. It finally stopped working going down the highway. When I turn the key it sounds like its trying to turn over but it never does. What is anyones thoughts on this. I'm thinking the catalytic convertor but I'm no mechanic. Please give me some thoughts. Thank you

Dear wopsmicky .. so what did it turn out to be? Did you get any "closure"
on your problem? Is the Car OK now? How much money did it take?
Hope all turned out OK for you and the neat PRIZM (I love 'em)
RSVP whe you can .. DangerDude