Yea, the 27" iMac in particular has always been a solid buy as you could never get a quality 2560x1440 panel on the cheap until those Korean panels showed up recently. But I have always thought the iMac was the best of the all in one offerings, and this thinner design really puts it even further ahead in terms of looks. The hardware upgrades and caching system also look like real winners. I am quite interested in seeing how well their Fusion compares to the alternatives out there, but it does seem like a better solution than having 1 volume for the OS and another for storage and apps like I do on my desktop. Yes I could use Intel's SRT but as it is limited to 64gb I never bothered. I'd rather see a more hybridized volume solution where I could take advantage of the cheap 240gb SSDs available today paired with the 1 tb raptors.
But really a great update when everyone was just expecting the same old design with some new cpus in the spec sheet. It really is about damn time flash storage made its way into the iMac, either as the fusion route or the pure SSD.