Glass polishing???, Need help getting light scratches out of my windshield Options

[ETNRIDER]

I hope this is the correct place to start this topic, I was unsure if it should be here or in the exterior styling forum.

Ok here is the story, I bought my Celica a few months ago and I am still in the process of fixing her up. I have noticed that I have very very light scratches all over my windshield. It looks like it may have sat for a while and then someone hopped in and turned the windshield wipers on with crap all over them or no rubber blades on and put scratches all over the windshield. I know it does not sound like something major but at night and in the rain I can barely see out at all due to the scratches. So here is my question could it be possible to buff them out. A new windshield is about $300 so if I mess the windshield up and can still just get a new one but I want to try and save the windshield I have. Let me know what you all think.

Thanks

[95st-celica]

rainx...rainx....rainx....stop works great...i have to wear glasses which i never do and at night espically when it rains i can barley see....the rain x makes a huge improvement and you barley even need your windsheild wipers....good stuff i highly recomend it