I've changed my 320Gb 5400 to a 500Gb 7200 in the Unibody MBPs in about 20 minutes.
How else do you suggest they make it easier!? It's pretty easy now as it is.
As for my predictions:
MacBook Air upgrade, no change to the MBP line (maybe a quiet CTO i7 quad addition, HD upgrades, basically nothing to wait up for!)
I've been correct twice now on the MP and MBP upgrades so im hoping for a 3/3 predictions
Also OS X will have TRIM support, or something equivalent to it.
Finder I think is fine, I don't understand why anybody hates it at all.
Damn sight better than W7 thats for sure!