Do you suggest buying a Macbook Air 2014 Model with 128gb Flash Storage or 256gb?

Okay, so this summer I got a job, and I get paid $8.25 an hour and I work about 9 hours a day. (about $75 daily). I need this money in 2 weeks, for a conference trip I'm going on. Could I just buy the 128gb Flash Storage model from Apple, because I already have a PC with lots of memory (800GB HDD). I want to use this Macbook Air for video editing, coding, music, and internet. I will not be doing gaming on my Mac, except for Minecraft. So, should I save the $300 and just get the $999 2014 13 inch Macbook Air with 128gb Flash Storage?

Are you looking just for the fourth gen cpu? (2014 ones or are you looking just for the air?)the 2014 ones have the 12 hour battery life. If your not look at furbished ones
http://store.apple.com/...ook_air/13
And if you have a lot of music go to the 256gb one or do lots of code/ video editing (also I recommend geting the 8gb ram for it)

Sounds like a winner to me

Explain in more detail please.