One word - eWWWWWWWWW

no way , I am paying that much for a crappy OS. I have just tested the POS OS .  OSX's Chess still rocks , and its a pure Rip-off of OSX. OMG , Aero hogs up ram like hell and they call that GUI. Take a look at OSX 10's GUI and the ease of use. They still can't get the right. Oh yeah , I can get the cool Aero effects by using Beryl on a X200 [it even works on a Radeon 9200].
There is nothing big deal about Vista . AFAIK , i am pretty happy running OSX on my Dell aka Hack. Seriously , OSX makes use of SSE3 and even VMX [on Core 2 Duo , Core Duo , Pentium D 9xx series]...I dont see Vista making use of that *yet*....We might never know...Oh yeah , lets wait for SP2 Vista .....Then only I'l use Vista.
<sarcasm>