Just to add a couple to make your life miserable.
Ride Machete (another good park board that can be taken anywhere)
K2 Darkstar (flat camber means it can handle carves but gives you some of the benefits of rocker. it'll probably be a bit less flexible than the parkstar while being more stable)
BlakSheep's Gnarly State Park Stik (Boards: 2010/2011 Preview | blak sheep snowboards
and a review The Angry Snowboarder Blog Archive Blak Sheep Gnarly State Park Stik Used and Reviewed
The last one is a start up on the east coast. According to BA at least, they're doing something right.