A week ago I received a new Dell desktop with Windows 7 w/ XP mode. After being a hold out with XP, I admit to quite liking Windows 7. Wish I had upgraded sooner!
Possibly the 64-bit & 16GB RAM help with my enjoyment. :B
Had heard nothing good about Windows 8 and think I'd not enjoy touching my screen with my oily paws. Don't need to be holding my arms/hands higher and moving them around. The Wacom Intous 4 tablet works well enough for me.
BTW, Windows 7 machines can still be ordered from Dell's "small business" section.