The US Apple store is back up with the new Macs which are:-
2.0GHz : 120GB $599.00
2.0GHz : 320GB $799.00
Quad-Core (One 2.66GHz Quad-Core Intel Xeon "Nehalem" processor) $2,499.00
8-Core (Two 2.26GHz Quad-Core Intel Xeon "Nehalem" processors) $3,299.00
20-inch : 2.66GHz $1,199.00
24-inch : 2.66GHz $1,499.00
24-inch : 2.93GHz $1,799.00
24-inch : 3.06GHz $2,199.00
After using Windows for over ten years, I thought I'd give the Mac Mini a whirl - this was back in 2005 I think. Was blown away by the OSX operating system and overall stability - so much so that I went and bought a PowerBook a few days later.
If you are thinking of trying out Windows - trying out the new Mac Mini is a good option - relatively cheap and you can use all your Windows peripherals. Even if you dont like it, you can just install Windows on it as its Intel.