...and so far it's been largely skittles and beer. The FireWire migration option never worked: the Apple-indicated procedure for starting up in "FireWire Target Disk Mode" did not work as advertised; nor was there a "Startup Disk" option for booting in that mode under 10.2.8, the last iteration that the B&W, with its processor upgrade and its gig of non-spec RAM, can reliably support. I've accordingly strung a lifeline between the two machines' ethernet ports, and have moved data via file-sharing.
I reinstalled Photoshop 7 from the original CD-ROM, purchased as an upgrade, and it demanded the production of the full serial number from a previously-purchased version. This I had, and the installation proceeded without incident. Illustrator 10 was not as cooperative: the "VISE" installation app crashed in three consecutive attempts. At this point I decided to try bypassing this cumbersome procedure, and moved the remaining three Adobe apps (Illustrator, InDesign and GoLive) via mojowire. This being done, I just knew the move couldn't be that painless, so next I went burrowing into the old box to user/Library/Application Support/Adobe and moved the contents of that directory (including the modest and unassuming 4K "Adobe Registration Database" file) over to the corresponding spot on the iMac, and now all the Adobe apps are happy and waiting to be detected by their eventual UB counterparts next year come upgrade time.
Performancewise, I took each of the Adobe apps for a trot around the track—nothing very demanding—and all appeared to perform with alacrity. It may well be that I'd have been drumming my fingers had I migrated from a dual-pump G5, but the other three machines I use apart from the just-supplanted one are a B&W 400MHz running OS 9.2, an early 400MHz running 10.3.9 on 1.25GB RAM, and the faithful G4 PowerBook, Tiger prowling through 784MB on a 1GHz processor. None of these baselines show off the new platform to the latter's disadvantage.
Native apps seem zippy as hell. I'm running on just 1GB of RAM, half the supported max. Shortly after I ordered the second gig, near-simultaneous with the original order, I was advised by the vendor that they were out of stock. When the module next became available a day or two later the price had been ramped up to near-Apple levels (I paid a C-note extra to go from .5 to 1GB; 2GB would have been another $200), so I decided to wait on that. The "iLife" suite are all quite brisk. Safari seems dramatically faster: it got slow and sulky on me just once, but at that point I had about a dozen other applications open, was burning a DVD, had a few widgets lurking, was transferring a large folder of documents over the mojowire from Old Paint and was accordingly relying on Airport rather than ethernet for my internet feed. The former hardware/software configuration would, I suspect, have gone conspicuously tits-up in the face of comparable demands.
The "Front Row" interface (which includes a remote somewhat larger than an iPod Shuffle, smaller than a Nano; adheres magnetically to the lower-right side of the computer) looks interesting, but apart from playing a couple of iPhoto slideshows I haven't spent much time on it.
This might be a good place to mention my first third party UB app, yclept [link|http://www.barebones.com/products/yojimbo/index.shtml|Yojimbo] from BareBones Software, the good folks who gave us BBEdit. Yojimbo is rather like the old Classic DAs "Notepad" and "Scrapbook"—I never understood why their combined functionalities were never made an apparent part of the new OS—on steroids and amphetamines. Just about any kind of information you feel like storing on the fly can go here, either readily available or encrypted. I'm impressed thus far.
So...it's a new computer, and I know how the curve will go. Gradually technology will overtake it; gradually my incremental modifications will fuck it up; over time it will become less and less receptive to OS upgrades; one day the first "System Requirements" screen will appear that explicitly states that "We don't serve your kind here!" All this I know. But, by god, the last time I owned a completely "up-to-date" Mac was almost 22 years ago (and it cost more than this one!), and it feels good to be current again.
UPDATE: I should perhaps mention that the most conspicuous loss of functionality so far noted is the flatbed scanner. I suspect I'll have to uncover the original CD-ROM and start again from there, or go to the Canon website. My first attempt to use the HP printer failed, but I retain a degree of hope.
cordially,