Cumming, Georgia
I use Adelphia cable. They offer a fairly extensive HD package that includes:
locals (CBS, NBC, Fox, etc.)
ESPN
Premiums (HBO, Starz, Showtime, etc.)
InHD (4 or 5) including some live concerts, IMAX and Discovery shows
HDMVS (Movies)
Not a bad deal. I don't really have anything to compare it to, though. I never had HD before...