man, you must not have fully torn it or you'd be on crutches. I partially tore my acl, and did some cartilage damage, and I couldn't even walk on my knee hardly, much less run on it. I did physical therapy for a couple months, and no improvement, and then one day it popped out of place and went right back in, and I said I'm getting surgery, I don't care. I had arthroscopic surgery last septmeber to remove all the pieces of tendond and ligament floating aorund as well as smooth out the cartilage, and he said it would be about 6 months to fully heal, and about in march or april, like he said, it was about 95%. its at 100% now, and I can catch with no problems at all.
If you can play on it, I wouldn't get the surgery right now because theres always a chance of reinjuring it, and you don't want to have 2 surgeries becaues you came back to fast, but if its hindering your abiliites, I would recommend getting it fixed.