I personally love the fact that on my PC which is a dual core amd64 x2 processor (4200+) 2 gigs of ram, Nvidia 8500GS, Vista Ultimate x64, I can run WinUAE and WinAROS at the same time. One in emulation, the other in a virtual pc (Virtual PC is now free since Vista's release for download). The exciting thing is I run my machine on a 720p HD monitor, my emulated screen resolution I run in is 1280x768x32bits..
It's soo fast and all of my old 3.x Amiga software (mostly productivity and 3d stuff) opens on the emulated picasso screen soo very nicely. It's extremely fast and gives things like final writer, and Pro Page 4.2 new life..
Also I am getting flawless animation even in Picassomodes for the software that supports it.