JWL,
The "Vista 2.0" thing is just Apple being cocky, along the line of the "I'm a Mac, and I'm a PC" adds. The idea, of course, is that Vista isn't even released yet (i.e., version 0.9b, or something), but Apple's already got Vista to version 2. You know, geek humour.
I'll be running one PC P4 2.8, 1 MacBook core duo 1.83, and 1 G5 dual 1.8 when I get back to the UK. We'll see how it goes, but I'm pretty optimistic. So far, the reports on Intel Macs with VI have been pretty great... I know I'll have to run XP on the MacBook for the time being because of the "external sequencer makes for popping" issue, but I'm sure VSL is on their way to a fix for slaved Macs, if it's not fixed already. That reminds me that I'm going to need yet another Vienna Key... yuk.
J.