Hi all! I've been lurking for awhile on this site and I finally decided to sign up! I would love some advice from you! I will be purchasing a iMac 27" i7 from B&H tommorrow and I have some hesitation. Now that it is mid-product cycle, I'm wondering if I should wait for the next revision (I would like to have Blu-ray, but I'm not sure if Mac will ever have it). This is my first Mac, and I am not very experienced on how drastically Macs evolve from one revision to another. I guess my question in a nut-shell is: Is it a good time based on current specs to purchase this model. Thanks in advance!