Help!! What is going on with my SVX?

[BenSVX]

Okay - so yesterday I was driving home from school and it shuddered forward violently a few times and then power was lost (as if it stalled or ran out of gas). I then re-started it with no problem and was right by a gas station, saw I was at a quarter, filled up, resumed home no problem, chalking it up to random occurence.

Fast forward to today - driving a little further, in 3rd, the car starts "bucking" wildly again, I slow and downshift, still happening in 2nd gear, then the power cuts. I restart and idle for a few minutes on the side of the road, put my warnings on, and drive cautiously in 1st - a few minutes later it starts happening again. I turn around to head home, forgetting my destination and stop in at the Active Green+Ross (Canadian service center) and tell them what's been happening. They look confused and say "try Eurotech about half an hour away".

I am heading to my parent's today (in my girlfriend's rental car luckily) so I don't have the time or want to risk driving that far, so I just parked at my place.

What is wrong with my SVX??

Thanks.