The TweakTown guys are taking an in-depth look at the latest build of Windows Vista (RC2 build 5744). They manage to load some drivers & even run some benchmarks.

"We look at installation to tweaking the OS, driver support, discussing what XP supported programs and games worked in Vista and then run some benchmarks to compare the performance from XP to Vista in its current state and with the latest drivers available to us at the moment."