yaH hoo!! 
First to vote!
Vista is perfect on my current system:
OS:
Windows Vista(TM) Home Premium 32-bit (Genuine) Currently beta-testing Windows 7 Beta build 7000 since Feb11 2009 29 March, Currently back to Windows Vista(TM) Home Premium 32-bit, called Microsoft this morning to
reactivate, problem with the ASUS Xonar D2X Control Panel with Win7
Processor: AMD Phenom 9750 Quad-Core Processor 2.40 GHz running under Zalman CNPS9500A Heatsink/Fan
RAM: Corsair 2x2GB DDR2 RAM Kit, XMS2 (C4 DHX) @ 4-4-4-12
Motherboard: ABIT AX78 mobo w AMD770/SB600/HT3.0/PCIe 2.0
Video: ASUS HD 4670 512MB (non-crossfire)
Sound:
Creative SB Audigy 2 Value 5.1 ASUS Xonar D2X 7.1 PCI Express
Hard Disks: Primary HDD: Western D SATA300 160Gb (Boot, OS, Software)
Secondary HDD: Western D SATA300 160Gb (Active Torrent/DL Drive)
Third HDD: Seagate SATA300 500Gb (Page File, Music/Video/Photo/porno storage

)
Optical Drives: ASUS DVD Writer w Lightscribe
LITEON Blu-ray ROM
Power Supply: Cooler Master eXtreme Power Plus 460W
Monitor: Samsung SyncMaster 2233sw 21.5", on 1920 x 1080 on DVI connection
Speakers: SONICGEAR ENZO 7000 (5.1) w attached Edifier extra Subwoofer
Input: Microsoft Multimedia Keyboard
Logitech G7 Laser Mouse
Casing: 8 year-old No-brand tower casing
Printer: HP psc1315 (print/scan/copy)
Accessories: Buffalo NAS storage 500GB (with Bittorrent support)
NETGEAR wireless G router
Free modem from Telekom (Can't remember what brand)
A can of pringles on the floor