I will list the ones that have not been mentioned...
Just picking on you, but those are 2 of my least favorite bands. I used to picture the singer of Buckcherry as a fat ass than never got laid so every song had to be what he thought about sex and women. (keep in mind I've only heard a few of their songs so that's what I used to base it on.)
For long runs, nothing better than Rob Dougans' instrumental stuff, "I'm not driving anymore" and "Furious Angels" are 2 of my favorite cruising run songs, hands down.
For park/rails, gotta go with Swollen Members, "Pornstar" is probably my favorite, but my Mp3 is full of all different stuff, just depends on my mood.
Not sure whats considered a "good beat" anymore lol. My mp3 is loaded with old school skate punk. I like the more aggresive nature of it.
Some of the more mainstream stuff
Rage against the machine
Probably not the "beats" you younger guys are into, but just a few suggestions for something different. My playlists will definatly bump up the amplitude a bit lol.
Oh, yes. All that stuff is good. I also like Bad Brains. Try them out. Also, soundgarden.