Hi, Im looking for some help. I currently own a Rev B Air (1.86, 2GB DDR3, NVDIA, 128GB solid state). Ive had it for close to a year and a half now. Its my main computer and I absolutely love it, with one or two exceptions. I typically have six or seven internet windows open at one time and i like to watch live streaming video on the internet (live sporting events etc.). In most cases, this thing grinds to a halt with that many browser windows open and the video (even when running by itself) is extremely choppy for my taste. I would LOVE to by a new AIR, but im concerned that perhaps ill just run into these same problems. Can anyone tell me for sure that i should not run into these problems and/or suggest a new model of AIR that would be sufficient for my needs? Would the base 11.6 be sufficient? Would the base 13.3 be sufficient? Would the ultimate models of each be sufficient? Are the video cards more powerful in the new AIRs than in my Rev B and will that make a huge difference? Thanks in advance for all your help.