[quote=@Lost Cause]
Sorry, just starting to feel a little like I'm in over my head. >.<
[/quote]

Well, SRW is actually fairly complex to do right. I'm not saying it's some deep writing or anything stupid like that, but a lot of work and thought goes into meshing all of the unrelated shows into an actually coherent whole and the writing team gets really creative with it. Your best bet, IMO, is picking out series you know and figuring out a way to integrate them all into a single setting, while adding a couple original elements that let players do their own thing if they haven't seen the shows. While this means people can't just bring in whatever series they want and some might not like it, it gives you more control over the game world and plot and keeps things neater.