Hi, I have a Rev A with HDD and I was quite happy with it. But lately the flash content of some webpages are starting to annoy me. Even with Coolbook installed the fans jump up tp 6200 in no time. Now I with all the price drops I am wondering whether I should I get a Rev B 1.8 with SSD or a Rev C 2.13 with SSD. Is there a big difference in terms of speed or battery life? Thank you all!