Alright, sounds fun and dandy right now.. Might even seem like you're getting somewhere with this, and I'm not trying to down what you're doing, but please, oh please.. If you're going to do this, put all your effort into it, and actually stick with it, not just a one day idea, then drop it..
If this is going to be a place to host tunes, I'd say stop now.. We already have UKF & Plenty other outlets that do that sort of thing, and Jaydot (From this Forum) Attempted the exact same thing, and it didn't end well, in my opinion..
Beyond that, when it comes to Graphics, give the Job to one person, and that person only, don't go around asking multiple people for this and that, or else the end result is going to look wonky, as if it came from 10 different brains.. Nobody likes wonky looking garbage.. Check out other popular channels, try to make sure yours looks as good, if not better.. And have the person designing this one show you some of his work, if it looks like shit, then he (or she

) Will make yours look like shit, which you don't want.. Graphics should be #1, because in actuality, you can have all the idea in the world, but if it isn't presented correctly, no one will give a shit about it.. People want something Simple and and Sleek to look at... This doesn't mean Pixelated and cheesy like Win 98 .. But nor do people want Rainbows and Alpaca's everywhere, so get someone who can fulfill that, because it's what people want to see.. It's Web 2.0.. Simple and Sleek.
I'd vote against placing anything to do with Dub or Step in the name.. Because if you want to elaborate, or branch out, into other Genres, it would be awkward having a name like "DubBassicsStepSubbersElite" .. Fuck does that have to do with Hip Hop?!
Also, don't go giving the User & Pass to every Larry or says they will contribute... Check out their tunes, and what they have to offer.. You don't want some loser sitting back, watching the Channel get popular, and then one day logging in, changing the password / email.. And then posting his shit tunes all over it, to get popular himself.. People do shit like this, so don't go that route.. It might even be better to have you, and maybe one other person that you trust, take care of the channel, and if someone wants to contribute they can send you the file that they wish for you to upload.. (That is what Mediafire is for.. )
And PLEASE make sure you REALLY want to do this.. And remember, there's plenty of other channels dedicated to this, and it may not get as popular as you wish..
If you had Dubway's backing, and could use the DSF Name, and have it advertised on these forums, that would be a different story.. But to most people, this is just going to be another Youtube Channel, with tut's & shit.
That's just my honesty, and I lay it out with seriousness, because I don't see the point in have a thread full of positivity towards an idea, which is not executed to it's full ability in the long-run, and ends up being shit..
I also see that you had an idea on a Ustream for the people here.. What happened with that idea? Stick to one idea, you can't handle multiple things like this at once, you have to execute one at a time..
If you do it right, I'm up for helping with Graphics.. But not if you're going to have 10 Other people doing it also.. Just makes things too complicated.
Luck Good.