I've been trying to build a list too. I modified this list from the HD channel comparison thread b/w Dish Network & DirecTV to fit my area:
A&E HD (118/9419)
Animal Planet HD (184/9489)
Discovery HD (182/9487)
Discovery HD Theater (9421)
Food HD (110/9462)
HDNet (9422)
HGTV HD (112/9461)
History HD (120/9491)
MHD (9469)
National Geographic HD (186/9429)
Science Channel HD (193/9490)
TBS HD (139/9499)
TLC HD (183/9488)
TNT HD (138/9420)
Universal HD (9427)
SciFi HD
USA HD
Animania HD (9474)
Equator HD (9471)
Gallery HD (9472)
Game Play HD (9485)
Rave HD (9470)
Treasure HD (9473)
UltraHD (9478)
HD News (9482)
CNN HD
HDNet Movies (9423)
Cinemax East HD (310/9458)
Cinemax West HD (514)
Family Room HD (9486)
Film Fest HD (9480)
Kung Fu HD (9479)
Monsters HD (9481)
World Cinema HD (9475)
Altitude HD (360)
BIG 10 HD (439-443 or 9500-9504)
ESPN HD (140/9424)
ESPN2 HD (144/9425)
FSN Northwest HD (376)
FSN Southwest HD (366)
FSN West HD (367)
NBA HD (561-572 or 9561-9572, 9466)
NFL Network HD (154/9426)
NHL Network (403 or 559)
VS/Golf HD (9468)
Rush HD (9476)
World Sport HD (9477)
I'm not really sure how the FSN channels work but assume they are regional... I'm really looking forward to Discovery HD, TLC HD, Animal Planet HD, National Geographic HD and Science Channel HD. If it's anything like PBS HD on the "Nature" shows, I anticipate it to be A-W-E-S-O-M-E.
The request was for a listing of HD channels in the HD Only package. The FSN and Big 10 channels are not included. I don't know if you can add premium channels (HBO, etc.) to the HD Only package as they are mostly SD. In any event, they are not included in the HD Only package.