Apple has released the new Mac mini, available with either an Intel Core Solo processor at 1.5GHz or an Intel Core Duo at 1.66GHz, with either able to use 2GB RAM.
Apple claims the top model will give one 4 to 5 times as much computing power as the old Mac mini G4 (which I own, and I think Gary Garritan has one also).
Prices, however, are higher than those for the Mac mini G4s the new models are replacing.
Computing-power-wise, getting a Mac mini with the Intel Core Duo option is about the same as getting an iMac Intel without a built-in LCD screen and without an included keyboard and mouse. While I think it would be worth the extra money to go for an iMac Intel, there are those who will be happy to make due with a Mac mini.
Now, as has been noted, you can't run GPO or JABB or any other Garritan products on the new Intel Macs yet because Native Instruments have not provided new compatible versions of their Kontakt products. And the only DAW host environment that works right now is Apple GarageBand/Logic Express/Logic Pro. We all hope these software compatibility problems will be fixed in the next two months or so, and Finale, Sibelius, Steinberg Cubase and Nuendo, Mackie Tracktion, and maybe even a Cakewalk Sonar product will get on board.